253102949 has 4 divisors (see below), whose sum is σ = 276112320. Its totient is φ = 230093580.

The previous prime is 253102921. The next prime is 253102961. The reversal of 253102949 is 949201352.

253102949 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253102949 is a prime.

It is a super-2 number, since 2×253102949² = 128122205584993202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253105949) 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, 11504669 + ... + 11504690.

It is an arithmetic number, because the mean of its divisors is an integer number (69028080).

Almost surely, 2^253102949 is an apocalyptic number.

It is an amenable number.

253102949 is a deficient number, since it is larger than the sum of its proper divisors (23009371).

253102949 is a wasteful number, since it uses less digits than its factorization.

253102949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23009370.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 253102949 is about 15909.2095655315. The cubic root of 253102949 is about 632.5561295207.

It can be divided in two parts, 2531029 and 49, that multiplied together give a palindrome (124020421).

The spelling of 253102949 in words is "two hundred fifty-three million, one hundred two thousand, nine hundred forty-nine".