61900942 has 4 divisors (see below), whose sum is σ = 92851416. Its totient is φ = 30950470.

The previous prime is 61900931. The next prime is 61900987. The reversal of 61900942 is 24900916.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15475234 + ... + 15475237.

It is an arithmetic number, because the mean of its divisors is an integer number (23212854).

Almost surely, 2^61900942 is an apocalyptic number.

61900942 is a deficient number, since it is larger than the sum of its proper divisors (30950474).

61900942 is a wasteful number, since it uses less digits than its factorization.

61900942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30950473.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 61900942 is about 7867.7151702384. The cubic root of 61900942 is about 395.5782632194.

The spelling of 61900942 in words is "sixty-one million, nine hundred thousand, nine hundred forty-two".