152220415231 has 4 divisors (see below), whose sum is σ = 152223748600. Its totient is φ = 152217081864.

The previous prime is 152220415169. The next prime is 152220415253. The reversal of 152220415231 is 132514022251.

It is a happy number.

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 152220415231 - 2¹⁷ = 152220284159 is a prime.

It is a super-2 number, since 2×152220415231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152220415231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152220415261) 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, 1597221 + ... + 1689838.

It is an arithmetic number, because the mean of its divisors is an integer number (38055937150).

Almost surely, 2^152220415231 is an apocalyptic number.

152220415231 is a deficient number, since it is larger than the sum of its proper divisors (3333369).

152220415231 is an equidigital number, since it uses as much as digits as its factorization.

152220415231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333368.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 152220415231 its reverse (132514022251), we get a palindrome (284734437482).

The spelling of 152220415231 in words is "one hundred fifty-two billion, two hundred twenty million, four hundred fifteen thousand, two hundred thirty-one".