1137997 has 16 divisors (see below), whose sum is σ = 1406592. Its totient is φ = 898560.

The previous prime is 1137991. The next prime is 1138019. The reversal of 1137997 is 7997311.

It is a cyclic number.

It is not a de Polignac number, because 1137997 - 2⁷ = 1137869 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 (1137991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8622 + ... + 8752.

It is an arithmetic number, because the mean of its divisors is an integer number (87912).

2^1137997 is an apocalyptic number.

1137997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1137997 is a deficient number, since it is larger than the sum of its proper divisors (268595).

1137997 is a wasteful number, since it uses less digits than its factorization.

1137997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its digits is 11907, while the sum is 37.

The square root of 1137997 is about 1066.7694221339. The cubic root of 1137997 is about 104.4031748911.

It can be divided in two parts, 11379 and 97, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 1137997 in words is "one million, one hundred thirty-seven thousand, nine hundred ninety-seven".