61158356 has 36 divisors (see below), whose sum is σ = 124566624. Its totient is φ = 25737120.

The previous prime is 61158353. The next prime is 61158371. The reversal of 61158356 is 65385116.

Its product of digits (21600) is a multiple of the sum of its prime factors (720).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61158353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103895 + ... + 104481.

It is an arithmetic number, because the mean of its divisors is an integer number (3460184).

Almost surely, 2^61158356 is an apocalyptic number.

It is an amenable number.

61158356 is an abundant number, since it is smaller than the sum of its proper divisors (63408268).

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

61158356 is a wasteful number, since it uses less digits than its factorization.

61158356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 657 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 61158356 is about 7820.3808091422. The cubic root of 61158356 is about 393.9900621919.

The spelling of 61158356 in words is "sixty-one million, one hundred fifty-eight thousand, three hundred fifty-six".