1253120531 has 8 divisors (see below), whose sum is σ = 1354497984. Its totient is φ = 1152455040.

The previous prime is 1253120521. The next prime is 1253120563. The reversal of 1253120531 is 1350213521.

It is a happy number.

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 1253120531 - 2¹⁰ = 1253119507 is a prime.

It is a super-2 number, since 2×1253120531² = 3140622130427443922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1253120497 and 1253120506.

It is not an unprimeable number, because it can be changed into a prime (1253120521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174326 + ... + 181371.

It is an arithmetic number, because the mean of its divisors is an integer number (169312248).

Almost surely, 2^1253120531 is an apocalyptic number.

1253120531 is a deficient number, since it is larger than the sum of its proper divisors (101377453).

1253120531 is a wasteful number, since it uses less digits than its factorization.

1253120531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355981.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1253120531 is about 35399.4425238590. The cubic root of 1253120531 is about 1078.1129974842.

The spelling of 1253120531 in words is "one billion, two hundred fifty-three million, one hundred twenty thousand, five hundred thirty-one".