61139342 has 8 divisors (see below), whose sum is σ = 100046232. Its totient is φ = 27790600.

The previous prime is 61139329. The next prime is 61139371. The reversal of 61139342 is 24393116.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389509 + ... + 1389552.

It is an arithmetic number, because the mean of its divisors is an integer number (12505779).

Almost surely, 2^61139342 is an apocalyptic number.

61139342 is a deficient number, since it is larger than the sum of its proper divisors (38906890).

61139342 is a wasteful number, since it uses less digits than its factorization.

61139342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2779074.

The product of its digits is 3888, while the sum is 29.

The square root of 61139342 is about 7819.1650449393. The cubic root of 61139342 is about 393.9492277417.

The spelling of 61139342 in words is "sixty-one million, one hundred thirty-nine thousand, three hundred forty-two".