253146251 has 4 divisors (see below), whose sum is σ = 253214952. Its totient is φ = 253077552.

The previous prime is 253146233. The next prime is 253146263. The reversal of 253146251 is 152641352.

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

It is a cyclic number.

It is not a de Polignac number, because 253146251 - 2²⁶ = 186037387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253146281) 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, 28490 + ... + 36303.

It is an arithmetic number, because the mean of its divisors is an integer number (63303738).

Almost surely, 2^253146251 is an apocalyptic number.

253146251 is a deficient number, since it is larger than the sum of its proper divisors (68701).

253146251 is an equidigital number, since it uses as much as digits as its factorization.

253146251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68700.

The product of its digits is 7200, while the sum is 29.

The square root of 253146251 is about 15910.5704171786. The cubic root of 253146251 is about 632.5922009872.

It can be divided in two parts, 253 and 146251, that multiplied together give a triangular number (37001503 = T₈₆₀₂).

The spelling of 253146251 in words is "two hundred fifty-three million, one hundred forty-six thousand, two hundred fifty-one".