3121763136 has 56 divisors (see below), whose sum is σ = 8618793024. Its totient is φ = 995343360.

The previous prime is 3121763129. The next prime is 3121763173. The reversal of 3121763136 is 6313671213.

It is a junction number, because it is equal to n+sod(n) for n = 3121763097 and 3121763106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349045 + ... + 357876.

Almost surely, 2^3121763136 is an apocalyptic number.

It is an amenable number.

3121763136 is an abundant number, since it is smaller than the sum of its proper divisors (5497029888).

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

3121763136 is a wasteful number, since it uses less digits than its factorization.

3121763136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706959 (or 706949 counting only the distinct ones).

The product of its digits is 13608, while the sum is 33.

The square root of 3121763136 is about 55872.7405449205. The cubic root of 3121763136 is about 1461.5039135091.

The spelling of 3121763136 in words is "three billion, one hundred twenty-one million, seven hundred sixty-three thousand, one hundred thirty-six".