151098997961 has 2 divisors, whose sum is σ = 151098997962. Its totient is φ = 151098997960.

The previous prime is 151098997957. The next prime is 151098997991. The reversal of 151098997961 is 169799890151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80574228736 + 70524769225 = 283856^2 + 265565^2 .

It is a cyclic number.

It is not a de Polignac number, because 151098997961 - 2² = 151098997957 is a prime.

It is not a weakly prime, because it can be changed into another prime (151098997921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75549498980 + 75549498981.

It is an arithmetic number, because the mean of its divisors is an integer number (75549498981).

Almost surely, 2^151098997961 is an apocalyptic number.

It is an amenable number.

151098997961 is a deficient number, since it is larger than the sum of its proper divisors (1).

151098997961 is an equidigital number, since it uses as much as digits as its factorization.

151098997961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11022480, while the sum is 65.

The spelling of 151098997961 in words is "one hundred fifty-one billion, ninety-eight million, nine hundred ninety-seven thousand, nine hundred sixty-one".