154297881156 has 12 divisors (see below), whose sum is σ = 360028389392. Its totient is φ = 51432627048.

The previous prime is 154297881149. The next prime is 154297881247. The reversal of 154297881156 is 651188792451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×154297881156² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 154297881096 and 154297881105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6429078370 + ... + 6429078393.

Almost surely, 2^154297881156 is an apocalyptic number.

It is an amenable number.

154297881156 is an abundant number, since it is smaller than the sum of its proper divisors (205730508236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154297881156 is a wasteful number, since it uses less digits than its factorization.

154297881156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12858156770 (or 12858156768 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 57.

The spelling of 154297881156 in words is "one hundred fifty-four billion, two hundred ninety-seven million, eight hundred eighty-one thousand, one hundred fifty-six".