1253131 has 4 divisors (see below), whose sum is σ = 1367064. Its totient is φ = 1139200.

The previous prime is 1253111. The next prime is 1253137. The reversal of 1253131 is 1313521.

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 1253131 - 2⁵ = 1253099 is a prime.

It is a super-2 number, since 2×1253131² = 3140674606322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56950 + ... + 56971.

It is an arithmetic number, because the mean of its divisors is an integer number (341766).

2^1253131 is an apocalyptic number.

1253131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1253131 is a deficient number, since it is larger than the sum of its proper divisors (113933).

1253131 is a wasteful number, since it uses less digits than its factorization.

1253131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113932.

The product of its digits is 90, while the sum is 16.

The square root of 1253131 is about 1119.4333387924. The cubic root of 1253131 is about 107.8115999785.

Adding to 1253131 its reverse (1313521), we get a palindrome (2566652).

The spelling of 1253131 in words is "one million, two hundred fifty-three thousand, one hundred thirty-one".