661134124 has 12 divisors (see below), whose sum is σ = 1322268304. Its totient is φ = 283343184.

The previous prime is 661134119. The next prime is 661134139. The reversal of 661134124 is 421431166.

661134124 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 23611933 = 661134124 / (6 + 6 + 1 + 1 + 3 + 4 + 1 + 2 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 661134092 and 661134101.

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, 11805939 + ... + 11805994.

Almost surely, 2^661134124 is an apocalyptic number.

It is an amenable number.

661134124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

661134124 is a wasteful number, since it uses less digits than its factorization.

661134124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23611944 (or 23611942 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 661134124 is about 25712.5285415495. The cubic root of 661134124 is about 871.1571882852.

The spelling of 661134124 in words is "six hundred sixty-one million, one hundred thirty-four thousand, one hundred twenty-four".