152013731 has 4 divisors (see below), whose sum is σ = 152092752. Its totient is φ = 151934712.

The previous prime is 152013727. The next prime is 152013749. The reversal of 152013731 is 137310251.

152013731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 152013731 - 2² = 152013727 is a prime.

It is a super-2 number, since 2×152013731² = 46216348825080722, 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 = 152013697 and 152013706.

It is not an unprimeable number, because it can be changed into a prime (152013931) 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, 36551 + ... + 40496.

It is an arithmetic number, because the mean of its divisors is an integer number (38023188).

Almost surely, 2^152013731 is an apocalyptic number.

152013731 is a deficient number, since it is larger than the sum of its proper divisors (79021).

152013731 is an equidigital number, since it uses as much as digits as its factorization.

152013731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79020.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 152013731 is about 12329.3848589457. The cubic root of 152013731 is about 533.6963993583.

Adding to 152013731 its reverse (137310251), we get a palindrome (289323982).

It can be divided in two parts, 1520 and 13731, that added together give a palindrome (15251).

The spelling of 152013731 in words is "one hundred fifty-two million, thirteen thousand, seven hundred thirty-one".