1140315987 has 32 divisors (see below), whose sum is σ = 1669704192. Its totient is φ = 689278464.

The previous prime is 1140315977. The next prime is 1140316003. The reversal of 1140315987 is 7895130411.

It is not a de Polignac number, because 1140315987 - 2¹¹ = 1140313939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140315937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191428 + ... + 197294.

It is an arithmetic number, because the mean of its divisors is an integer number (52178256).

Almost surely, 2^1140315987 is an apocalyptic number.

1140315987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1140315987 is a deficient number, since it is larger than the sum of its proper divisors (529388205).

1140315987 is a wasteful number, since it uses less digits than its factorization.

1140315987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 1140315987 is about 33768.5650716758. The cubic root of 1140315987 is about 1044.7404365903.

The spelling of 1140315987 in words is "one billion, one hundred forty million, three hundred fifteen thousand, nine hundred eighty-seven".