1137432645 has 16 divisors (see below), whose sum is σ = 2022102720. Its totient is φ = 606630672.

The previous prime is 1137432641. The next prime is 1137432649. The reversal of 1137432645 is 5462347311.

1137432645 is a `hidden beast` number, since 1 + 1 + 3 + 7 + 4 + 3 + 2 + 645 = 666.

It is an interprime number because it is at equal distance from previous prime (1137432641) and next prime (1137432649).

It is not a de Polignac number, because 1137432645 - 2² = 1137432641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1137432641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4212579 + ... + 4212848.

It is an arithmetic number, because the mean of its divisors is an integer number (126381420).

Almost surely, 2^1137432645 is an apocalyptic number.

1137432645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1137432645 is a deficient number, since it is larger than the sum of its proper divisors (884670075).

1137432645 is an equidigital number, since it uses as much as digits as its factorization.

1137432645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8425441 (or 8425435 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 1137432645 is about 33725.8453563436. The cubic root of 1137432645 is about 1043.8591351097.

Adding to 1137432645 its reverse (5462347311), we get a palindrome (6599779956).

The spelling of 1137432645 in words is "one billion, one hundred thirty-seven million, four hundred thirty-two thousand, six hundred forty-five".