154136523159977 has 2 divisors, whose sum is σ = 154136523159978. Its totient is φ = 154136523159976.

The previous prime is 154136523159887. The next prime is 154136523160019. The reversal of 154136523159977 is 779951325631451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146685501281641 + 7451021878336 = 12111379^2 + 2729656^2 .

It is a cyclic number.

It is not a de Polignac number, because 154136523159977 - 2²⁶ = 154136456051113 is a prime.

It is a super-2 number, since 2×154136523159977² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (154136523159077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77068261579988 + 77068261579989.

It is an arithmetic number, because the mean of its divisors is an integer number (77068261579989).

Almost surely, 2^{154136523159977} is an apocalyptic number.

It is an amenable number.

154136523159977 is a deficient number, since it is larger than the sum of its proper divisors (1).

154136523159977 is an equidigital number, since it uses as much as digits as its factorization.

154136523159977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326000, while the sum is 68.

The spelling of 154136523159977 in words is "one hundred fifty-four trillion, one hundred thirty-six billion, five hundred twenty-three million, one hundred fifty-nine thousand, nine hundred seventy-seven".