15152531231 has 2 divisors, whose sum is σ = 15152531232. Its totient is φ = 15152531230.

The previous prime is 15152531213. The next prime is 15152531257. The reversal of 15152531231 is 13213525151.

Together with previous prime (15152531213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15152531231 - 2⁶ = 15152531167 is a prime.

It is a super-2 number, since 2×15152531231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15152531194 and 15152531203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15152531201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7576265615 + 7576265616.

It is an arithmetic number, because the mean of its divisors is an integer number (7576265616).

Almost surely, 2^15152531231 is an apocalyptic number.

15152531231 is a deficient number, since it is larger than the sum of its proper divisors (1).

15152531231 is an equidigital number, since it uses as much as digits as its factorization.

15152531231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4500, while the sum is 29.

The spelling of 15152531231 in words is "fifteen billion, one hundred fifty-two million, five hundred thirty-one thousand, two hundred thirty-one".