1311157454 has 8 divisors (see below), whose sum is σ = 2034554760. Its totient is φ = 632972536.

The previous prime is 1311157429. The next prime is 1311157459. The reversal of 1311157454 is 4547511131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1311157454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311157459) 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, 11303024 + ... + 11303139.

It is an arithmetic number, because the mean of its divisors is an integer number (254319345).

Almost surely, 2^1311157454 is an apocalyptic number.

1311157454 is a deficient number, since it is larger than the sum of its proper divisors (723397306).

1311157454 is a wasteful number, since it uses less digits than its factorization.

1311157454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22606194.

The product of its digits is 8400, while the sum is 32.

The square root of 1311157454 is about 36209.9082296545. The cubic root of 1311157454 is about 1094.5063429522.

Adding to 1311157454 its reverse (4547511131), we get a palindrome (5858668585).

The spelling of 1311157454 in words is "one billion, three hundred eleven million, one hundred fifty-seven thousand, four hundred fifty-four".