1231132454 has 8 divisors (see below), whose sum is σ = 1926990000. Its totient is φ = 588802456.

The previous prime is 1231132453. The next prime is 1231132459. The reversal of 1231132454 is 4542311321.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231132453) 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, 13381829 + ... + 13381920.

It is an arithmetic number, because the mean of its divisors is an integer number (240873750).

Almost surely, 2^1231132454 is an apocalyptic number.

1231132454 is a deficient number, since it is larger than the sum of its proper divisors (695857546).

1231132454 is a wasteful number, since it uses less digits than its factorization.

1231132454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26763774.

The product of its digits is 2880, while the sum is 26.

The square root of 1231132454 is about 35087.4971179194. The cubic root of 1231132454 is about 1071.7699921202.

Adding to 1231132454 its reverse (4542311321), we get a palindrome (5773443775).

The spelling of 1231132454 in words is "one billion, two hundred thirty-one million, one hundred thirty-two thousand, four hundred fifty-four".