252491149 has 8 divisors (see below), whose sum is σ = 257886720. Its totient is φ = 247132896.

The previous prime is 252491147. The next prime is 252491167. The reversal of 252491149 is 941194252.

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

It is a cyclic number.

It is not a de Polignac number, because 252491149 - 2¹ = 252491147 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 (252491143) 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, 4564 + ... + 22930.

It is an arithmetic number, because the mean of its divisors is an integer number (32235840).

Almost surely, 2^252491149 is an apocalyptic number.

It is an amenable number.

252491149 is a deficient number, since it is larger than the sum of its proper divisors (5395571).

252491149 is a wasteful number, since it uses less digits than its factorization.

252491149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18659.

The product of its digits is 25920, while the sum is 37.

The square root of 252491149 is about 15889.9700754910. The cubic root of 252491149 is about 632.0460471243.

It can be divided in two parts, 252 and 491149, that added together give a square (491401 = 701²).

The spelling of 252491149 in words is "two hundred fifty-two million, four hundred ninety-one thousand, one hundred forty-nine".