1187313995 has 16 divisors (see below), whose sum is σ = 1629020160. Its totient is φ = 813806304.

The previous prime is 1187313991. The next prime is 1187314021. The reversal of 1187313995 is 5993137811.

It is a cyclic number.

It is not a de Polignac number, because 1187313995 - 2² = 1187313991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1187313991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94874 + ... + 106656.

It is an arithmetic number, because the mean of its divisors is an integer number (101813760).

Almost surely, 2^1187313995 is an apocalyptic number.

1187313995 is a deficient number, since it is larger than the sum of its proper divisors (441706165).

1187313995 is a wasteful number, since it uses less digits than its factorization.

1187313995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14674.

The product of its digits is 204120, while the sum is 47.

The square root of 1187313995 is about 34457.4229303353. The cubic root of 1187313995 is about 1058.9006030457.

The spelling of 1187313995 in words is "one billion, one hundred eighty-seven million, three hundred thirteen thousand, nine hundred ninety-five".