145530413 has 4 divisors (see below), whose sum is σ = 166320480. Its totient is φ = 124740348.

The previous prime is 145530383. The next prime is 145530419. The reversal of 145530413 is 314035541.

145530413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145530413 - 2⁸ = 145530157 is a prime.

It is a super-2 number, since 2×145530413² = 42358202215901138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145530419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10395023 + ... + 10395036.

It is an arithmetic number, because the mean of its divisors is an integer number (41580120).

Almost surely, 2^145530413 is an apocalyptic number.

It is an amenable number.

145530413 is a deficient number, since it is larger than the sum of its proper divisors (20790067).

145530413 is an equidigital number, since it uses as much as digits as its factorization.

145530413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20790066.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 145530413 is about 12063.5986753539. The cubic root of 145530413 is about 525.9985988387.

Adding to 145530413 its reverse (314035541), we get a palindrome (459565954).

The spelling of 145530413 in words is "one hundred forty-five million, five hundred thirty thousand, four hundred thirteen".