252159694 has 4 divisors (see below), whose sum is σ = 378239544. Its totient is φ = 126079846.

The previous prime is 252159683. The next prime is 252159709. The reversal of 252159694 is 496951252.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×252159694² = 127169022556347272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252159694.

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, 63039922 + ... + 63039925.

It is an arithmetic number, because the mean of its divisors is an integer number (94559886).

Almost surely, 2^252159694 is an apocalyptic number.

252159694 is a deficient number, since it is larger than the sum of its proper divisors (126079850).

252159694 is a wasteful number, since it uses less digits than its factorization.

252159694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126079849.

The product of its digits is 194400, while the sum is 43.

The square root of 252159694 is about 15879.5369579846. The cubic root of 252159694 is about 631.7693554977.

The spelling of 252159694 in words is "two hundred fifty-two million, one hundred fifty-nine thousand, six hundred ninety-four".