152140631 has 4 divisors (see below), whose sum is σ = 152221272. Its totient is φ = 152059992.

The previous prime is 152140613. The next prime is 152140669. The reversal of 152140631 is 136041251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152140631 is a prime.

It is a super-2 number, since 2×152140631² = 46293543202156322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152140597 and 152140606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152140691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37421 + ... + 41286.

It is an arithmetic number, because the mean of its divisors is an integer number (38055318).

Almost surely, 2^152140631 is an apocalyptic number.

152140631 is a deficient number, since it is larger than the sum of its proper divisors (80641).

152140631 is an equidigital number, since it uses as much as digits as its factorization.

152140631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80640.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 152140631 is about 12334.5300275284. The cubic root of 152140631 is about 533.8448667273.

Adding to 152140631 its reverse (136041251), we get a palindrome (288181882).

The spelling of 152140631 in words is "one hundred fifty-two million, one hundred forty thousand, six hundred thirty-one".