1231315454 has 8 divisors (see below), whose sum is σ = 1853500440. Its totient is φ = 613481976.

The previous prime is 1231315453. The next prime is 1231315483. The reversal of 1231315454 is 4545131321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1231315454² = 3032275494518452232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231315453) 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, 1087169 + ... + 1088300.

It is an arithmetic number, because the mean of its divisors is an integer number (231687555).

Almost surely, 2^1231315454 is an apocalyptic number.

1231315454 is a deficient number, since it is larger than the sum of its proper divisors (622184986).

1231315454 is a wasteful number, since it uses less digits than its factorization.

1231315454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175754.

The product of its digits is 7200, while the sum is 29.

The square root of 1231315454 is about 35090.1047875323. The cubic root of 1231315454 is about 1071.8230934175.

Adding to 1231315454 its reverse (4545131321), we get a palindrome (5776446775).

The spelling of 1231315454 in words is "one billion, two hundred thirty-one million, three hundred fifteen thousand, four hundred fifty-four".