1254431100455 has 16 divisors (see below), whose sum is σ = 1623738420864. Its totient is φ = 924847714560.

The previous prime is 1254431100451. The next prime is 1254431100493. The reversal of 1254431100455 is 5540011344521.

It is a happy number.

It is not a de Polignac number, because 1254431100455 - 2² = 1254431100451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254431100451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15599231 + ... + 15679440.

It is an arithmetic number, because the mean of its divisors is an integer number (101483651304).

Almost surely, 2^{1254431100455} is an apocalyptic number.

1254431100455 is a deficient number, since it is larger than the sum of its proper divisors (369307320409).

1254431100455 is a wasteful number, since it uses less digits than its factorization.

1254431100455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31279306.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 1254431100455 its reverse (5540011344521), we get a palindrome (6794442444976).

The spelling of 1254431100455 in words is "one trillion, two hundred fifty-four billion, four hundred thirty-one million, one hundred thousand, four hundred fifty-five".