61814136 has 16 divisors (see below), whose sum is σ = 154535400. Its totient is φ = 20604704.

The previous prime is 61814113. The next prime is 61814141. The reversal of 61814136 is 63141816.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 1287771 + ... + 1287818.

Almost surely, 2^61814136 is an apocalyptic number.

It is an amenable number.

61814136 is an abundant number, since it is smaller than the sum of its proper divisors (92721264).

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

61814136 is a wasteful number, since it uses less digits than its factorization.

61814136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575598 (or 2575594 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 61814136 is about 7862.1966396167. The cubic root of 61814136 is about 395.3932653312.

The spelling of 61814136 in words is "sixty-one million, eight hundred fourteen thousand, one hundred thirty-six".