142072724 has 6 divisors (see below), whose sum is σ = 248627274. Its totient is φ = 71036360.

The previous prime is 142072687. The next prime is 142072739. The reversal of 142072724 is 427270241.

It can be written as a sum of positive squares in only one way, i.e., 98644624 + 43428100 = 9932^2 + 6590^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17759087 + ... + 17759094.

It is an arithmetic number, because the mean of its divisors is an integer number (41437879).

Almost surely, 2^142072724 is an apocalyptic number.

It is an amenable number.

142072724 is a deficient number, since it is larger than the sum of its proper divisors (106554550).

142072724 is a wasteful number, since it uses less digits than its factorization.

142072724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35518185 (or 35518183 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 142072724 is about 11919.4263284774. The cubic root of 142072724 is about 521.7993924866.

The spelling of 142072724 in words is "one hundred forty-two million, seventy-two thousand, seven hundred twenty-four".