145536955831 has 2 divisors, whose sum is σ = 145536955832. Its totient is φ = 145536955830.

The previous prime is 145536955777. The next prime is 145536955871. The reversal of 145536955831 is 138559635541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145536955831 is a prime.

It is a super-2 number, since 2×145536955831² (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 (145536955871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72768477915 + 72768477916.

It is an arithmetic number, because the mean of its divisors is an integer number (72768477916).

Almost surely, 2^145536955831 is an apocalyptic number.

145536955831 is a deficient number, since it is larger than the sum of its proper divisors (1).

145536955831 is an equidigital number, since it uses as much as digits as its factorization.

145536955831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720000, while the sum is 55.

The spelling of 145536955831 in words is "one hundred forty-five billion, five hundred thirty-six million, nine hundred fifty-five thousand, eight hundred thirty-one".