7133121457 has 24 divisors (see below), whose sum is σ = 8993259968. Its totient is φ = 5538028320.

The previous prime is 7133121439. The next prime is 7133121467. The reversal of 7133121457 is 7541213317.

It is not a de Polignac number, because 7133121457 - 2¹⁵ = 7133088689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7133121407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219418 + ... + 249820.

Almost surely, 2^7133121457 is an apocalyptic number.

7133121457 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

7133121457 is a deficient number, since it is larger than the sum of its proper divisors (1860138511).

7133121457 is a wasteful number, since it uses less digits than its factorization.

7133121457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30709 (or 30698 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 7133121457 is about 84457.8087390385. The cubic root of 7133121457 is about 1924.9814093443.

The spelling of 7133121457 in words is "seven billion, one hundred thirty-three million, one hundred twenty-one thousand, four hundred fifty-seven".