61401158 has 16 divisors (see below), whose sum is σ = 113356320. Its totient is φ = 24290496.

The previous prime is 61401143. The next prime is 61401169. The reversal of 61401158 is 85110416.

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 7 ways as a sum of consecutive naturals, for example, 168503 + ... + 168866.

It is an arithmetic number, because the mean of its divisors is an integer number (7084770).

Almost surely, 2^61401158 is an apocalyptic number.

61401158 is a deficient number, since it is larger than the sum of its proper divisors (51955162).

61401158 is a wasteful number, since it uses less digits than its factorization.

61401158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337391.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 61401158 is about 7835.8891007977. The cubic root of 61401158 is about 394.5107610569.

The spelling of 61401158 in words is "sixty-one million, four hundred one thousand, one hundred fifty-eight".