61401494 has 16 divisors (see below), whose sum is σ = 114829056. Its totient is φ = 23922600.

The previous prime is 61401481. The next prime is 61401503. The reversal of 61401494 is 49410416.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199202 + ... + 199509.

It is an arithmetic number, because the mean of its divisors is an integer number (7176816).

Almost surely, 2^61401494 is an apocalyptic number.

61401494 is a deficient number, since it is larger than the sum of its proper divisors (53427562).

61401494 is a wasteful number, since it uses less digits than its factorization.

61401494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398731.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 61401494 is about 7835.9105405817. The cubic root of 61401494 is about 394.5114806708.

The spelling of 61401494 in words is "sixty-one million, four hundred one thousand, four hundred ninety-four".