145620008631 has 16 divisors (see below), whose sum is σ = 216755787520. Its totient is φ = 96619907160.

The previous prime is 145620008609. The next prime is 145620008687. The reversal of 145620008631 is 136800026541.

It is a happy number.

145620008631 is a `hidden beast` number, since 14 + 5 + 6 + 2 + 0 + 0 + 0 + 8 + 631 = 666.

It is not a de Polignac number, because 145620008631 - 2¹⁵ = 145619975863 is a prime.

It is a super-2 number, since 2×145620008631² (a number of 23 digits) 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 (145620008531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12774715 + ... + 12786108.

It is an arithmetic number, because the mean of its divisors is an integer number (13547236720).

Almost surely, 2^145620008631 is an apocalyptic number.

145620008631 is a deficient number, since it is larger than the sum of its proper divisors (71135778889).

145620008631 is a wasteful number, since it uses less digits than its factorization.

145620008631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25561043 (or 25561037 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 145620008631 in words is "one hundred forty-five billion, six hundred twenty million, eight thousand, six hundred thirty-one".