145235013 has 32 divisors (see below), whose sum is σ = 242058240. Its totient is φ = 75250560.

The previous prime is 145235003. The next prime is 145235021. The reversal of 145235013 is 310532541.

It is not a de Polignac number, because 145235013 - 2⁵ = 145234981 is a prime.

It is a super-2 number, since 2×145235013² = 42186418002220338, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145235003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142018 + ... + 143036.

It is an arithmetic number, because the mean of its divisors is an integer number (7564320).

Almost surely, 2^145235013 is an apocalyptic number.

It is an amenable number.

145235013 is a deficient number, since it is larger than the sum of its proper divisors (96823227).

145235013 is a wasteful number, since it uses less digits than its factorization.

145235013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 145235013 is about 12051.3490116252. The cubic root of 145235013 is about 525.6424642628.

Adding to 145235013 its reverse (310532541), we get a palindrome (455767554).

The spelling of 145235013 in words is "one hundred forty-five million, two hundred thirty-five thousand, thirteen".