154031401561 has 16 divisors (see below), whose sum is σ = 161616176640. Its totient is φ = 146628930240.

The previous prime is 154031401553. The next prime is 154031401607. The reversal of 154031401561 is 165104130451.

It is a cyclic number.

It is not a de Polignac number, because 154031401561 - 2³ = 154031401553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154031401541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5601516 + ... + 5628946.

It is an arithmetic number, because the mean of its divisors is an integer number (10101011040).

Almost surely, 2^154031401561 is an apocalyptic number.

It is an amenable number.

154031401561 is a deficient number, since it is larger than the sum of its proper divisors (7584775079).

154031401561 is a wasteful number, since it uses less digits than its factorization.

154031401561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30744.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 154031401561 in words is "one hundred fifty-four billion, thirty-one million, four hundred one thousand, five hundred sixty-one".