252111541 has 8 divisors (see below), whose sum is σ = 275814144. Its totient is φ = 228539520.

The previous prime is 252111539. The next prime is 252111569. The reversal of 252111541 is 145111252.

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

It is not a de Polignac number, because 252111541 - 2¹ = 252111539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252112541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28581 + ... + 36346.

It is an arithmetic number, because the mean of its divisors is an integer number (34476768).

Almost surely, 2^252111541 is an apocalyptic number.

It is an amenable number.

252111541 is a deficient number, since it is larger than the sum of its proper divisors (23702603).

252111541 is a wasteful number, since it uses less digits than its factorization.

252111541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65291.

The product of its digits is 400, while the sum is 22.

The square root of 252111541 is about 15878.0206889902. The cubic root of 252111541 is about 631.7291382238.

Adding to 252111541 its reverse (145111252), we get a palindrome (397222793).

The spelling of 252111541 in words is "two hundred fifty-two million, one hundred eleven thousand, five hundred forty-one".