72142694 has 8 divisors (see below), whose sum is σ = 116538240. Its totient is φ = 33296616.

The previous prime is 72142649. The next prime is 72142709. The reversal of 72142694 is 49624127.

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

It is a Curzon number.

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, 1387334 + ... + 1387385.

It is an arithmetic number, because the mean of its divisors is an integer number (14567280).

Almost surely, 2^72142694 is an apocalyptic number.

72142694 is a deficient number, since it is larger than the sum of its proper divisors (44395546).

72142694 is a wasteful number, since it uses less digits than its factorization.

72142694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2774734.

The product of its digits is 24192, while the sum is 35.

The square root of 72142694 is about 8493.6855369151. The cubic root of 72142694 is about 416.2914124014.

The spelling of 72142694 in words is "seventy-two million, one hundred forty-two thousand, six hundred ninety-four".