1140656157 has 12 divisors (see below), whose sum is σ = 1744533180. Its totient is φ = 715705728.

The previous prime is 1140656147. The next prime is 1140656189. The reversal of 1140656157 is 7516560411.

It is a happy number.

1140656157 is a `hidden beast` number, since 1 + 1 + 40 + 6 + 561 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 529874361 + 610781796 = 23019^2 + 24714^2 .

It is not a de Polignac number, because 1140656157 - 2¹⁰ = 1140655133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140656117) 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, 3727482 + ... + 3727787.

It is an arithmetic number, because the mean of its divisors is an integer number (145377765).

Almost surely, 2^1140656157 is an apocalyptic number.

1140656157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1140656157 is a deficient number, since it is larger than the sum of its proper divisors (603877023).

1140656157 is a wasteful number, since it uses less digits than its factorization.

1140656157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7455292 (or 7455289 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1140656157 is about 33773.6014810384. The cubic root of 1140656157 is about 1044.8443124824.

The spelling of 1140656157 in words is "one billion, one hundred forty million, six hundred fifty-six thousand, one hundred fifty-seven".