61501394 has 16 divisors (see below), whose sum is σ = 95147136. Its totient is φ = 29796000.

The previous prime is 61501387. The next prime is 61501399. The reversal of 61501394 is 49310516.

It is not an unprimeable number, because it can be changed into a prime (61501399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9899 + ... + 14865.

It is an arithmetic number, because the mean of its divisors is an integer number (5946696).

Almost surely, 2^61501394 is an apocalyptic number.

61501394 is a deficient number, since it is larger than the sum of its proper divisors (33645742).

61501394 is a wasteful number, since it uses less digits than its factorization.

61501394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 61501394 is about 7842.2824483692. The cubic root of 61501394 is about 394.7253209724.

The spelling of 61501394 in words is "sixty-one million, five hundred one thousand, three hundred ninety-four".