1137729797 has 4 divisors (see below), whose sum is σ = 1152131520. Its totient is φ = 1123328076.

The previous prime is 1137729793. The next prime is 1137729833. The reversal of 1137729797 is 7979277311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1137729797 - 2² = 1137729793 is a prime.

It is a super-2 number, since 2×1137729797² = 2588858181963322418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137729793) 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 3 ways as a sum of consecutive naturals, for example, 7200743 + ... + 7200900.

It is an arithmetic number, because the mean of its divisors is an integer number (288032880).

Almost surely, 2^1137729797 is an apocalyptic number.

It is an amenable number.

1137729797 is a deficient number, since it is larger than the sum of its proper divisors (14401723).

1137729797 is an equidigital number, since it uses as much as digits as its factorization.

1137729797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14401722.

The product of its digits is 1166886, while the sum is 53.

The square root of 1137729797 is about 33730.2504734252. The cubic root of 1137729797 is about 1043.9500292309.

The spelling of 1137729797 in words is "one billion, one hundred thirty-seven million, seven hundred twenty-nine thousand, seven hundred ninety-seven".