1230554131 has 4 divisors (see below), whose sum is σ = 1231340992. Its totient is φ = 1229767272.

The previous prime is 1230554069. The next prime is 1230554137. The reversal of 1230554131 is 1314550321.

It is a happy number.

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 1230554131 - 2²³ = 1222165523 is a prime.

It is a super-2 number, since 2×1230554131² = 3028526938642330322, 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 = 1230554096 and 1230554105.

It is not an unprimeable number, because it can be changed into a prime (1230554137) 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, 391080 + ... + 394213.

It is an arithmetic number, because the mean of its divisors is an integer number (307835248).

Almost surely, 2^1230554131 is an apocalyptic number.

1230554131 is a deficient number, since it is larger than the sum of its proper divisors (786861).

1230554131 is an equidigital number, since it uses as much as digits as its factorization.

1230554131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786860.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1230554131 is about 35079.2549949397. The cubic root of 1230554131 is about 1071.6021449442.

The spelling of 1230554131 in words is "one billion, two hundred thirty million, five hundred fifty-four thousand, one hundred thirty-one".