61355136 has 32 divisors (see below), whose sum is σ = 162975600. Its totient is φ = 20451584.

The previous prime is 61355131. The next prime is 61355141. The reversal of 61355136 is 63155316.

It is an interprime number because it is at equal distance from previous prime (61355131) and next prime (61355141).

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (61355131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79506 + ... + 80273.

Almost surely, 2^61355136 is an apocalyptic number.

It is an amenable number.

61355136 is an abundant number, since it is smaller than the sum of its proper divisors (101620464).

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

61355136 is a wasteful number, since it uses less digits than its factorization.

61355136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159796 (or 159784 counting only the distinct ones).

The product of its digits is 8100, while the sum is 30.

The square root of 61355136 is about 7832.9519339774. The cubic root of 61355136 is about 394.4121705584.

The spelling of 61355136 in words is "sixty-one million, three hundred fifty-five thousand, one hundred thirty-six".