1162138144 has 12 divisors (see below), whose sum is σ = 2287959534. Its totient is φ = 581069056.

The previous prime is 1162138093. The next prime is 1162138147. The reversal of 1162138144 is 4418312611.

It can be written as a sum of positive squares in only one way, i.e., 1141088400 + 21049744 = 33780^2 + 4588^2 .

It is not an unprimeable number, because it can be changed into a prime (1162138147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18158377 + ... + 18158440.

Almost surely, 2^1162138144 is an apocalyptic number.

It is an amenable number.

1162138144 is a deficient number, since it is larger than the sum of its proper divisors (1125821390).

1162138144 is an equidigital number, since it uses as much as digits as its factorization.

1162138144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36316827 (or 36316819 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 1162138144 is about 34090.1473156101. The cubic root of 1162138144 is about 1051.3627487993.

The spelling of 1162138144 in words is "one billion, one hundred sixty-two million, one hundred thirty-eight thousand, one hundred forty-four".