151969933231 has 2 divisors, whose sum is σ = 151969933232. Its totient is φ = 151969933230.

The previous prime is 151969933201. The next prime is 151969933267. The reversal of 151969933231 is 132339969151.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151969933231 - 2³¹ = 149822449583 is a prime.

It is a super-2 number, since 2×151969933231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151969933201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75984966615 + 75984966616.

It is an arithmetic number, because the mean of its divisors is an integer number (75984966616).

Almost surely, 2^151969933231 is an apocalyptic number.

151969933231 is a deficient number, since it is larger than the sum of its proper divisors (1).

151969933231 is an equidigital number, since it uses as much as digits as its factorization.

151969933231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1180980, while the sum is 52.

The spelling of 151969933231 in words is "one hundred fifty-one billion, nine hundred sixty-nine million, nine hundred thirty-three thousand, two hundred thirty-one".