1171350387 has 12 divisors (see below), whose sum is σ = 1694017104. Its totient is φ = 779946480.

The previous prime is 1171350373. The next prime is 1171350431. The reversal of 1171350387 is 7830531711.

It is a happy number.

1171350387 is a `hidden beast` number, since 1 + 1 + 71 + 3 + 503 + 87 = 666.

It is not a de Polignac number, because 1171350387 - 2¹⁹ = 1170826099 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1171350787) 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, 71664 + ... + 86477.

It is an arithmetic number, because the mean of its divisors is an integer number (141168092).

Almost surely, 2^1171350387 is an apocalyptic number.

1171350387 is a deficient number, since it is larger than the sum of its proper divisors (522666717).

1171350387 is a wasteful number, since it uses less digits than its factorization.

1171350387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158970 (or 158967 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1171350387 is about 34224.9965230093. The cubic root of 1171350387 is about 1054.1334834370.

The spelling of 1171350387 in words is "one billion, one hundred seventy-one million, three hundred fifty thousand, three hundred eighty-seven".