61357152 has 24 divisors (see below), whose sum is σ = 161062776. Its totient is φ = 20452352.

The previous prime is 61357151. The next prime is 61357159. The reversal of 61357152 is 25175316.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×61357152² = 7529400203102208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61357151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319473 + ... + 319664.

It is an arithmetic number, because the mean of its divisors is an integer number (6710949).

Almost surely, 2^61357152 is an apocalyptic number.

It is an amenable number.

61357152 is an abundant number, since it is smaller than the sum of its proper divisors (99705624).

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

61357152 is a wasteful number, since it uses less digits than its factorization.

61357152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639150 (or 639142 counting only the distinct ones).

The product of its digits is 6300, while the sum is 30.

The square root of 61357152 is about 7833.0806200370. The cubic root of 61357152 is about 394.4164903610.

The spelling of 61357152 in words is "sixty-one million, three hundred fifty-seven thousand, one hundred fifty-two".