61501492 has 48 divisors (see below), whose sum is σ = 119281680. Its totient is φ = 27574272.

The previous prime is 61501469. The next prime is 61501501. The reversal of 61501492 is 29410516.

It can be written as a sum of positive squares in 8 ways, for example, as 6948496 + 54552996 = 2636^2 + 7386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61501492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448848 + ... + 448984.

It is an arithmetic number, because the mean of its divisors is an integer number (2485035).

Almost surely, 2^61501492 is an apocalyptic number.

It is an amenable number.

61501492 is a deficient number, since it is larger than the sum of its proper divisors (57780188).

61501492 is a wasteful number, since it uses less digits than its factorization.

61501492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 61501492 is about 7842.2886965477. The cubic root of 61501492 is about 394.7255306320.

The spelling of 61501492 in words is "sixty-one million, five hundred one thousand, four hundred ninety-two".