1140732247 has 4 divisors (see below), whose sum is σ = 1140808320. Its totient is φ = 1140656176.

The previous prime is 1140732227. The next prime is 1140732287. The reversal of 1140732247 is 7422370411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1140732247 - 2⁷ = 1140732119 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 (1140732227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7222 + ... + 48307.

It is an arithmetic number, because the mean of its divisors is an integer number (285202080).

Almost surely, 2^1140732247 is an apocalyptic number.

1140732247 is a deficient number, since it is larger than the sum of its proper divisors (76073).

1140732247 is an equidigital number, since it uses as much as digits as its factorization.

1140732247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76072.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 1140732247 is about 33774.7279337673. The cubic root of 1140732247 is about 1044.8675448519.

The spelling of 1140732247 in words is "one billion, one hundred forty million, seven hundred thirty-two thousand, two hundred forty-seven".