61836136 has 16 divisors (see below), whose sum is σ = 117008100. Its totient is φ = 30633984.

The previous prime is 61836119. The next prime is 61836163. The reversal of 61836136 is 63163816.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60933636 + 902500 = 7806^2 + 950^2 .

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, 34585 + ... + 36328.

Almost surely, 2^61836136 is an apocalyptic number.

It is an amenable number.

61836136 is a deficient number, since it is larger than the sum of its proper divisors (55171964).

61836136 is a wasteful number, since it uses less digits than its factorization.

61836136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71028 (or 71024 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 61836136 is about 7863.5956152386. The cubic root of 61836136 is about 395.4401673326.

The spelling of 61836136 in words is "sixty-one million, eight hundred thirty-six thousand, one hundred thirty-six".