1137223765 has 8 divisors (see below), whose sum is σ = 1397953368. Its totient is φ = 887589120.

The previous prime is 1137223729. The next prime is 1137223771. The reversal of 1137223765 is 5673227311.

It can be written as a sum of positive squares in 4 ways, for example, as 8868484 + 1128355281 = 2978^2 + 33591^2 .

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

It is not a de Polignac number, because 1137223765 - 2⁹ = 1137223253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2773512 + ... + 2773921.

It is an arithmetic number, because the mean of its divisors is an integer number (174744171).

Almost surely, 2^1137223765 is an apocalyptic number.

It is an amenable number.

1137223765 is a deficient number, since it is larger than the sum of its proper divisors (260729603).

1137223765 is an equidigital number, since it uses as much as digits as its factorization.

1137223765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547479.

The product of its digits is 52920, while the sum is 37.

The square root of 1137223765 is about 33722.7484793277. The cubic root of 1137223765 is about 1043.7952325289.

The spelling of 1137223765 in words is "one billion, one hundred thirty-seven million, two hundred twenty-three thousand, seven hundred sixty-five".