61915842 has 24 divisors (see below), whose sum is σ = 135770544. Its totient is φ = 20389464.

The previous prime is 61915831. The next prime is 61915859. The reversal of 61915842 is 24851916.

It is a junction number, because it is equal to n+sod(n) for n = 61915797 and 61915806.

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 in 11 ways as a sum of consecutive naturals, for example, 19228 + ... + 22215.

It is an arithmetic number, because the mean of its divisors is an integer number (5657106).

Almost surely, 2^61915842 is an apocalyptic number.

61915842 is an abundant number, since it is smaller than the sum of its proper divisors (73854702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61915842 is a wasteful number, since it uses less digits than its factorization.

61915842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41534 (or 41531 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 61915842 is about 7868.6620209538. The cubic root of 61915842 is about 395.6100001800.

It can be divided in two parts, 619 and 15842, that added together give a palindrome (16461).

The spelling of 61915842 in words is "sixty-one million, nine hundred fifteen thousand, eight hundred forty-two".