154573406131 has 2 divisors, whose sum is σ = 154573406132. Its totient is φ = 154573406130.

The previous prime is 154573406129. The next prime is 154573406147. The reversal of 154573406131 is 131604375451.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (131604375451) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 154573406131 - 2¹ = 154573406129 is a prime.

It is a super-2 number, since 2×154573406131² (a number of 23 digits) contains 22 as substring.

Together with 154573406129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (154573406231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77286703065 + 77286703066.

It is an arithmetic number, because the mean of its divisors is an integer number (77286703066).

Almost surely, 2^154573406131 is an apocalyptic number.

154573406131 is a deficient number, since it is larger than the sum of its proper divisors (1).

154573406131 is an equidigital number, since it uses as much as digits as its factorization.

154573406131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 154573406131 in words is "one hundred fifty-four billion, five hundred seventy-three million, four hundred six thousand, one hundred thirty-one".