2951117138 has 18 divisors (see below), whose sum is σ = 4480914711. Its totient is φ = 1457696524.

The previous prime is 2951117131. The next prime is 2951117149. The reversal of 2951117138 is 8317111592.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1475558569 + 1475558569 = 38413^2 + 38413^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=38413.

It is a super-2 number, since 2×2951117138² = 17418184724394622088, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2951117131) 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 8 ways as a sum of consecutive naturals, for example, 8220203 + ... + 8220561.

Almost surely, 2^2951117138 is an apocalyptic number.

2951117138 is a deficient number, since it is larger than the sum of its proper divisors (1529797573).

2951117138 is an frugal number, since it uses more digits than its factorization.

2951117138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 468 counting only the distinct ones).

The product of its digits is 15120, while the sum is 38.

The square root of 2951117138 is about 54324.1855714377. The cubic root of 2951117138 is about 1434.3731576486.

The spelling of 2951117138 in words is "two billion, nine hundred fifty-one million, one hundred seventeen thousand, one hundred thirty-eight".