1140000657 has 4 divisors (see below), whose sum is σ = 1520000880. Its totient is φ = 760000436.

The previous prime is 1140000619. The next prime is 1140000661. The reversal of 1140000657 is 7560000411.

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 1140000657 - 2⁸ = 1140000401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140000157) 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, 190000107 + ... + 190000112.

It is an arithmetic number, because the mean of its divisors is an integer number (380000220).

Almost surely, 2^1140000657 is an apocalyptic number.

It is an amenable number.

1140000657 is a deficient number, since it is larger than the sum of its proper divisors (380000223).

1140000657 is an equidigital number, since it uses as much as digits as its factorization.

1140000657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380000222.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1140000657 is about 33763.8957615972. The cubic root of 1140000657 is about 1044.6441275039.

The spelling of 1140000657 in words is "one billion, one hundred forty million, six hundred fifty-seven", and thus it is an aban number.