61415494 has 8 divisors (see below), whose sum is σ = 105283728. Its totient is φ = 26320920.

The previous prime is 61415491. The next prime is 61415507. The reversal of 61415494 is 49451416.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61415491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2193397 + ... + 2193424.

It is an arithmetic number, because the mean of its divisors is an integer number (13160466).

Almost surely, 2^61415494 is an apocalyptic number.

61415494 is a deficient number, since it is larger than the sum of its proper divisors (43868234).

61415494 is a wasteful number, since it uses less digits than its factorization.

61415494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386830.

The product of its digits is 17280, while the sum is 34.

The square root of 61415494 is about 7836.8038127798. The cubic root of 61415494 is about 394.5414622486.

The spelling of 61415494 in words is "sixty-one million, four hundred fifteen thousand, four hundred ninety-four".