30974844154 has 4 divisors (see below), whose sum is σ = 46462266234. Its totient is φ = 15487422076.

The previous prime is 30974844143. The next prime is 30974844167. The reversal of 30974844154 is 45144847903.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45144847903 = 239 ⋅188890577.

It can be written as a sum of positive squares in only one way, i.e., 18043742929 + 12931101225 = 134327^2 + 113715^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 30974844098 and 30974844107.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7743711037 + ... + 7743711040.

Almost surely, 2^30974844154 is an apocalyptic number.

30974844154 is a deficient number, since it is larger than the sum of its proper divisors (15487422080).

30974844154 is a wasteful number, since it uses less digits than its factorization.

30974844154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15487422079.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The spelling of 30974844154 in words is "thirty billion, nine hundred seventy-four million, eight hundred forty-four thousand, one hundred fifty-four".