61912542 has 16 divisors (see below), whose sum is σ = 126845712. Its totient is φ = 20134080.

The previous prime is 61912531. The next prime is 61912597. The reversal of 61912542 is 24521916.

It is a nialpdrome in base 13.

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, 125593 + ... + 126084.

It is an arithmetic number, because the mean of its divisors is an integer number (7927857).

Almost surely, 2^61912542 is an apocalyptic number.

61912542 is an abundant number, since it is smaller than the sum of its proper divisors (64933170).

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

61912542 is a wasteful number, since it uses less digits than its factorization.

61912542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251723.

The product of its digits is 4320, while the sum is 30.

The square root of 61912542 is about 7868.4523255847. The cubic root of 61912542 is about 395.6029716277.

The spelling of 61912542 in words is "sixty-one million, nine hundred twelve thousand, five hundred forty-two".