61051158 has 60 divisors (see below), whose sum is σ = 159155172. Its totient is φ = 17440920.

The previous prime is 61051127. The next prime is 61051169. The reversal of 61051158 is 85115016.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4093 + ... + 11783.

Almost surely, 2^61051158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61051158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79577586).

61051158 is an abundant number, since it is smaller than the sum of its proper divisors (98104014).

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

61051158 is a wasteful number, since it uses less digits than its factorization.

61051158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7719 (or 7703 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 61051158 is about 7813.5240448853. The cubic root of 61051158 is about 393.7597330927.

The spelling of 61051158 in words is "sixty-one million, fifty-one thousand, one hundred fifty-eight".