61501194 has 40 divisors (see below), whose sum is σ = 139775328. Its totient is φ = 20207880.

The previous prime is 61501177. The next prime is 61501211. The reversal of 61501194 is 49110516.

It is an interprime number because it is at equal distance from previous prime (61501177) and next prime (61501211).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8829 + ... + 14175.

Almost surely, 2^61501194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61501194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69887664).

61501194 is an abundant number, since it is smaller than the sum of its proper divisors (78274134).

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

61501194 is a wasteful number, since it uses less digits than its factorization.

61501194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432 (or 5423 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 61501194 is about 7842.2696969691. The cubic root of 61501194 is about 394.7248930951.

The spelling of 61501194 in words is "sixty-one million, five hundred one thousand, one hundred ninety-four".