145331315 has 8 divisors (see below), whose sum is σ = 174576480. Its totient is φ = 116145792.

The previous prime is 145331299. The next prime is 145331321. The reversal of 145331315 is 513133541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145331315 - 2⁴ = 145331299 is a prime.

It is a super-2 number, since 2×145331315² = 42242382239258450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9359 + ... + 19448.

It is an arithmetic number, because the mean of its divisors is an integer number (21822060).

Almost surely, 2^145331315 is an apocalyptic number.

145331315 is a deficient number, since it is larger than the sum of its proper divisors (29245165).

145331315 is a wasteful number, since it uses less digits than its factorization.

145331315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29821.

The product of its digits is 2700, while the sum is 26.

The square root of 145331315 is about 12055.3438358265. The cubic root of 145331315 is about 525.7586190734.

Adding to 145331315 its reverse (513133541), we get a palindrome (658464856).

It can be divided in two parts, 1453 and 31315, that added together give a 15-th power (32768 = 2¹⁵).

The spelling of 145331315 in words is "one hundred forty-five million, three hundred thirty-one thousand, three hundred fifteen".