1252133541 has 12 divisors (see below), whose sum is σ = 1809308800. Its totient is φ = 834445800.

The previous prime is 1252133537. The next prime is 1252133567. The reversal of 1252133541 is 1453312521.

It is not a de Polignac number, because 1252133541 - 2² = 1252133537 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 (1252133941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260 + ... + 50058.

Almost surely, 2^1252133541 is an apocalyptic number.

It is an amenable number.

1252133541 is a deficient number, since it is larger than the sum of its proper divisors (557175259).

1252133541 is a wasteful number, since it uses less digits than its factorization.

1252133541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51656 (or 51653 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1252133541 is about 35385.4990214918. The cubic root of 1252133541 is about 1077.8298732860.

The spelling of 1252133541 in words is "one billion, two hundred fifty-two million, one hundred thirty-three thousand, five hundred forty-one".