253145002 has 32 divisors (see below), whose sum is σ = 429883200. Its totient is φ = 110745600.

The previous prime is 253144967. The next prime is 253145003. The reversal of 253145002 is 200541352.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (253145003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394602 + ... + 395242.

It is an arithmetic number, because the mean of its divisors is an integer number (13433850).

Almost surely, 2^253145002 is an apocalyptic number.

253145002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

253145002 is a deficient number, since it is larger than the sum of its proper divisors (176738198).

253145002 is a wasteful number, since it uses less digits than its factorization.

253145002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 253145002 is about 15910.5311664947. The cubic root of 253145002 is about 632.5911606018.

Adding to 253145002 its reverse (200541352), we get a palindrome (453686354).

The spelling of 253145002 in words is "two hundred fifty-three million, one hundred forty-five thousand, two".