252106061 has 4 divisors (see below), whose sum is σ = 252488124. Its totient is φ = 251724000.

The previous prime is 252106021. The next prime is 252106087. The reversal of 252106061 is 160601252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 206813161 + 45292900 = 14381^2 + 6730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252106061 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 (252106021) 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, 190040 + ... + 191361.

It is an arithmetic number, because the mean of its divisors is an integer number (63122031).

Almost surely, 2^252106061 is an apocalyptic number.

It is an amenable number.

252106061 is a deficient number, since it is larger than the sum of its proper divisors (382063).

252106061 is an equidigital number, since it uses as much as digits as its factorization.

252106061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382062.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 252106061 is about 15877.8481224629. The cubic root of 252106061 is about 631.7245610160.

The spelling of 252106061 in words is "two hundred fifty-two million, one hundred six thousand, sixty-one".