252120043 has 24 divisors (see below), whose sum is σ = 307389600. Its totient is φ = 205793280.

The previous prime is 252119977. The next prime is 252120049. The reversal of 252120043 is 340021252.

It is a de Polignac number, because none of the positive numbers 2^k-252120043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 252120043.

It is not an unprimeable number, because it can be changed into a prime (252120049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393003 + ... + 393643.

It is an arithmetic number, because the mean of its divisors is an integer number (12807900).

Almost surely, 2^252120043 is an apocalyptic number.

252120043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

252120043 is a deficient number, since it is larger than the sum of its proper divisors (55269557).

252120043 is a wasteful number, since it uses less digits than its factorization.

252120043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 252120043 is about 15878.2884153173. The cubic root of 252120043 is about 631.7362394467.

Adding to 252120043 its reverse (340021252), we get a palindrome (592141295).

It can be divided in two parts, 252 and 120043, that added together give a triangular number (120295 = T₄₉₀).

The spelling of 252120043 in words is "two hundred fifty-two million, one hundred twenty thousand, forty-three".