145335330 has 128 divisors (see below), whose sum is σ = 447068160. Its totient is φ = 32909760.

The previous prime is 145335319. The next prime is 145335331. The reversal of 145335330 is 33533541.

It is a happy number.

It is a super-2 number, since 2×145335330² = 42244716292417800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 145335294 and 145335303.

It is not an unprimeable number, because it can be changed into a prime (145335331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 247297 + ... + 247883.

It is an arithmetic number, because the mean of its divisors is an integer number (3492720).

Almost surely, 2^145335330 is an apocalyptic number.

145335330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145335330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223534080).

145335330 is an abundant number, since it is smaller than the sum of its proper divisors (301732830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145335330 is a wasteful number, since it uses less digits than its factorization.

145335330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 145335330 is about 12055.5103583382. The cubic root of 145335330 is about 525.7634606577.

Adding to 145335330 its reverse (33533541), we get a palindrome (178868871).

The spelling of 145335330 in words is "one hundred forty-five million, three hundred thirty-five thousand, three hundred thirty".