1140657 has 16 divisors (see below), whose sum is σ = 1799040. Its totient is φ = 628992.

The previous prime is 1140637. The next prime is 1140677. The reversal of 1140657 is 7560411.

It is an interprime number because it is at equal distance from previous prime (1140637) and next prime (1140677).

It is not a de Polignac number, because 1140657 - 2¹⁸ = 878513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (112440).

2^1140657 is an apocalyptic number.

It is an amenable number.

1140657 is a deficient number, since it is larger than the sum of its proper divisors (658383).

1140657 is a wasteful number, since it uses less digits than its factorization.

1140657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1912.

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

The square root of 1140657 is about 1068.0154493265. The cubic root of 1140657 is about 104.4844569879.

The spelling of 1140657 in words is "one million, one hundred forty thousand, six hundred fifty-seven".