61161308 has 48 divisors (see below), whose sum is σ = 124961760. Its totient is φ = 25933824.

The previous prime is 61161281. The next prime is 61161329. The reversal of 61161308 is 80316116.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37208 + ... + 38816.

It is an arithmetic number, because the mean of its divisors is an integer number (2603370).

Almost surely, 2^61161308 is an apocalyptic number.

61161308 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

61161308 is an abundant number, since it is smaller than the sum of its proper divisors (63800452).

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

61161308 is a wasteful number, since it uses less digits than its factorization.

61161308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1684 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 61161308 is about 7820.5695444769. The cubic root of 61161308 is about 393.9964011455.

The spelling of 61161308 in words is "sixty-one million, one hundred sixty-one thousand, three hundred eight".