252135707 has 4 divisors (see below), whose sum is σ = 252522480. Its totient is φ = 251748936.

The previous prime is 252135701. The next prime is 252135713. The reversal of 252135707 is 707531252.

252135707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (252135701) and next prime (252135713).

It is a cyclic number.

It is not a de Polignac number, because 252135707 - 2¹² = 252131611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252135701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192407 + ... + 193712.

It is an arithmetic number, because the mean of its divisors is an integer number (63130620).

Almost surely, 2^252135707 is an apocalyptic number.

252135707 is a deficient number, since it is larger than the sum of its proper divisors (386773).

252135707 is an equidigital number, since it uses as much as digits as its factorization.

252135707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386772.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 252135707 is about 15878.7816598126. The cubic root of 252135707 is about 631.7493222510.

Adding to 252135707 its reverse (707531252), we get a palindrome (959666959).

The spelling of 252135707 in words is "two hundred fifty-two million, one hundred thirty-five thousand, seven hundred seven".