1158313156 has 243 divisors, whose sum is σ = 2981357127. Its totient is φ = 392071680.

The previous prime is 1158313151. The next prime is 1158313229. The reversal of 1158313156 is 6513138511.

1158313156 = 379² + 380² + ... + 1522².

The square root of 1158313156 is 34034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10458756 + 1147854400 = 3234^2 + 33880^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

Its product of digits (10800) is a multiple of the sum of its prime divisors (50).

It is not an unprimeable number, because it can be changed into a prime (1158313151) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 68136060 + ... + 68136076.

Almost surely, 2^1158313156 is an apocalyptic number.

1158313156 is the 34034-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1158313156

1158313156 is an abundant number, since it is smaller than the sum of its proper divisors (1823043971).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158313156 is a wasteful number, since it uses less digits than its factorization.

1158313156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 50 counting only the distinct ones).

The product of its digits is 10800, while the sum is 34.

The cubic root of 1158313156 is about 1050.2080180456.

The spelling of 1158313156 in words is "one billion, one hundred fifty-eight million, three hundred thirteen thousand, one hundred fifty-six".