1117637951 has 2 divisors, whose sum is σ = 1117637952. Its totient is φ = 1117637950.

The previous prime is 1117637923. The next prime is 1117637971. The reversal of 1117637951 is 1597367111.

It is a strong prime.

It is an emirp because it is prime and its reverse (1597367111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1117637951 - 2⁶ = 1117637887 is a prime.

It is a super-2 number, since 2×1117637951² = 2498229179030956802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1117637899 and 1117637908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117637971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558818975 + 558818976.

It is an arithmetic number, because the mean of its divisors is an integer number (558818976).

Almost surely, 2^1117637951 is an apocalyptic number.

1117637951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117637951 is an equidigital number, since it uses as much as digits as its factorization.

1117637951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690, while the sum is 41.

The square root of 1117637951 is about 33431.0925786161. The cubic root of 1117637951 is about 1037.7682514567.

The spelling of 1117637951 in words is "one billion, one hundred seventeen million, six hundred thirty-seven thousand, nine hundred fifty-one".