1252134042 has 16 divisors (see below), whose sum is σ = 2535968640. Its totient is φ = 412094592.

The previous prime is 1252134019. The next prime is 1252134047. The reversal of 1252134042 is 2404312521.

It is not an unprimeable number, because it can be changed into a prime (1252134047) 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, 1320343 + ... + 1321290.

It is an arithmetic number, because the mean of its divisors is an integer number (158498040).

Almost surely, 2^1252134042 is an apocalyptic number.

1252134042 is an abundant number, since it is smaller than the sum of its proper divisors (1283834598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252134042 is a wasteful number, since it uses less digits than its factorization.

1252134042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641717.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1252134042 is about 35385.5061006622. The cubic root of 1252134042 is about 1077.8300170387.

Adding to 1252134042 its reverse (2404312521), we get a palindrome (3656446563).

The spelling of 1252134042 in words is "one billion, two hundred fifty-two million, one hundred thirty-four thousand, forty-two".