61450158 has 64 divisors (see below), whose sum is σ = 159916032. Its totient is φ = 15264480.

The previous prime is 61450141. The next prime is 61450171. The reversal of 61450158 is 85105416.

It is a super-2 number, since 2×61450158² = 7552243836449928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7735 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (2498688).

Almost surely, 2^61450158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61450158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79958016).

61450158 is an abundant number, since it is smaller than the sum of its proper divisors (98465874).

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

61450158 is a wasteful number, since it uses less digits than its factorization.

61450158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829.

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 61450158 is about 7839.0151167095. The cubic root of 61450158 is about 394.6156770333.

The spelling of 61450158 in words is "sixty-one million, four hundred fifty thousand, one hundred fifty-eight".