1137216997 has 8 divisors (see below), whose sum is σ = 1304620416. Its totient is φ = 971049552.

The previous prime is 1137216973. The next prime is 1137217007. The reversal of 1137216997 is 7996127311.

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

It is a cyclic number.

It is not a de Polignac number, because 1137216997 - 2¹⁵ = 1137184229 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 (1137216907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307018 + ... + 310699.

It is an arithmetic number, because the mean of its divisors is an integer number (163077552).

Almost surely, 2^1137216997 is an apocalyptic number.

It is an amenable number.

1137216997 is a deficient number, since it is larger than the sum of its proper divisors (167403419).

1137216997 is an equidigital number, since it uses as much as digits as its factorization.

1137216997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617987.

The product of its digits is 142884, while the sum is 46.

The square root of 1137216997 is about 33722.6481314858. The cubic root of 1137216997 is about 1043.7931618663.

The spelling of 1137216997 in words is "one billion, one hundred thirty-seven million, two hundred sixteen thousand, nine hundred ninety-seven".