1167245138 has 4 divisors (see below), whose sum is σ = 1750867710. Its totient is φ = 583622568.

The previous prime is 1167245137. The next prime is 1167245159. The reversal of 1167245138 is 8315427611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8315427611 = 149 ⋅55808239.

It can be written as a sum of positive squares in only one way, i.e., 940832929 + 226412209 = 30673^2 + 15047^2 .

It is a super-2 number, since 2×1167245138² = 2724922424369278088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1167245137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 291811283 + ... + 291811286.

Almost surely, 2^1167245138 is an apocalyptic number.

1167245138 is a deficient number, since it is larger than the sum of its proper divisors (583622572).

1167245138 is an equidigital number, since it uses as much as digits as its factorization.

1167245138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583622571.

The product of its digits is 40320, while the sum is 38.

The square root of 1167245138 is about 34164.9694570330. The cubic root of 1167245138 is about 1052.9005629060.

The spelling of 1167245138 in words is "one billion, one hundred sixty-seven million, two hundred forty-five thousand, one hundred thirty-eight".