145902913 has 16 divisors (see below), whose sum is σ = 161672896. Its totient is φ = 130818240.

The previous prime is 145902901. The next prime is 145902937. The reversal of 145902913 is 319209541.

It is a cyclic number.

It is not a de Polignac number, because 145902913 - 2⁹ = 145902401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145902943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117331 + ... + 118567.

It is an arithmetic number, because the mean of its divisors is an integer number (10104556).

Almost surely, 2^145902913 is an apocalyptic number.

145902913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145902913 is a deficient number, since it is larger than the sum of its proper divisors (15769983).

145902913 is a wasteful number, since it uses less digits than its factorization.

145902913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 145902913 is about 12079.0278168402. The cubic root of 145902913 is about 526.4469989128.

The spelling of 145902913 in words is "one hundred forty-five million, nine hundred two thousand, nine hundred thirteen".