61499942 has 8 divisors (see below), whose sum is σ = 105428496. Its totient is φ = 26357112.

The previous prime is 61499891. The next prime is 61499983. The reversal of 61499942 is 24999416.

61499942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 61499893 and 61499902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2196413 + ... + 2196440.

It is an arithmetic number, because the mean of its divisors is an integer number (13178562).

Almost surely, 2^61499942 is an apocalyptic number.

61499942 is a deficient number, since it is larger than the sum of its proper divisors (43928554).

61499942 is a wasteful number, since it uses less digits than its factorization.

61499942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4392862.

The product of its digits is 139968, while the sum is 44.

The square root of 61499942 is about 7842.1898727333. The cubic root of 61499942 is about 394.7222145622.

The spelling of 61499942 in words is "sixty-one million, four hundred ninety-nine thousand, nine hundred forty-two".