146291839931 has 2 divisors, whose sum is σ = 146291839932. Its totient is φ = 146291839930.

The previous prime is 146291839919. The next prime is 146291839951. The reversal of 146291839931 is 139938192641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146291839931 - 2³⁰ = 145218098107 is a prime.

It is a super-2 number, since 2×146291839931² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146291839951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73145919965 + 73145919966.

It is an arithmetic number, because the mean of its divisors is an integer number (73145919966).

Almost surely, 2^146291839931 is an apocalyptic number.

146291839931 is a deficient number, since it is larger than the sum of its proper divisors (1).

146291839931 is an equidigital number, since it uses as much as digits as its factorization.

146291839931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2519424, while the sum is 56.

The spelling of 146291839931 in words is "one hundred forty-six billion, two hundred ninety-one million, eight hundred thirty-nine thousand, nine hundred thirty-one".