1140948457 has 12 divisors (see below), whose sum is σ = 1255937904. Its totient is φ = 1027920320.

The previous prime is 1140948443. The next prime is 1140948469. The reversal of 1140948457 is 7548490411.

It is not a de Polignac number, because 1140948457 - 2²⁷ = 1006730729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140948857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136398 + ... + 144520.

It is an arithmetic number, because the mean of its divisors is an integer number (104661492).

Almost surely, 2^1140948457 is an apocalyptic number.

It is an amenable number.

1140948457 is a deficient number, since it is larger than the sum of its proper divisors (114989447).

1140948457 is an equidigital number, since it uses as much as digits as its factorization.

1140948457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8360 (or 8247 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1140948457 is about 33777.9285480919. The cubic root of 1140948457 is about 1044.9335540728.

The spelling of 1140948457 in words is "one billion, one hundred forty million, nine hundred forty-eight thousand, four hundred fifty-seven".