154113231697 has 2 divisors, whose sum is σ = 154113231698. Its totient is φ = 154113231696.

The previous prime is 154113231641. The next prime is 154113231709. The reversal of 154113231697 is 796132311451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131264188416 + 22849043281 = 362304^2 + 151159^2 .

It is a cyclic number.

It is not a de Polignac number, because 154113231697 - 2²³ = 154104843089 is a prime.

It is not a weakly prime, because it can be changed into another prime (154113231617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77056615848 + 77056615849.

It is an arithmetic number, because the mean of its divisors is an integer number (77056615849).

Almost surely, 2^154113231697 is an apocalyptic number.

It is an amenable number.

154113231697 is a deficient number, since it is larger than the sum of its proper divisors (1).

154113231697 is an equidigital number, since it uses as much as digits as its factorization.

154113231697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The spelling of 154113231697 in words is "one hundred fifty-four billion, one hundred thirteen million, two hundred thirty-one thousand, six hundred ninety-seven".