145932631 has 8 divisors (see below), whose sum is σ = 163991520. Its totient is φ = 128849952.

The previous prime is 145932587. The next prime is 145932637. The reversal of 145932631 is 136239541.

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 145932631 - 2⁷ = 145932503 is a prime.

It is a super-2 number, since 2×145932631² = 42592665581164322, 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 (145932637) by changing a digit.

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, 243736 + ... + 244333.

It is an arithmetic number, because the mean of its divisors is an integer number (20498940).

Almost surely, 2^145932631 is an apocalyptic number.

145932631 is a deficient number, since it is larger than the sum of its proper divisors (18058889).

145932631 is a wasteful number, since it uses less digits than its factorization.

145932631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488105.

The product of its digits is 19440, while the sum is 34.

The square root of 145932631 is about 12080.2579028761. The cubic root of 145932631 is about 526.4827393229.

The spelling of 145932631 in words is "one hundred forty-five million, nine hundred thirty-two thousand, six hundred thirty-one".