158115770 has 16 divisors (see below), whose sum is σ = 284898600. Its totient is φ = 63181824.

The previous prime is 158115757. The next prime is 158115781. The reversal of 158115770 is 77511851.

It can be written as a sum of positive squares in 4 ways, for example, as 149548441 + 8567329 = 12229^2 + 2927^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 158115770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954 + ... + 18026.

Almost surely, 2^158115770 is an apocalyptic number.

158115770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

158115770 is a deficient number, since it is larger than the sum of its proper divisors (126782830).

158115770 is a wasteful number, since it uses less digits than its factorization.

158115770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16129.

The product of its (nonzero) digits is 9800, while the sum is 35.

The square root of 158115770 is about 12574.4093300640. The cubic root of 158115770 is about 540.7440246917.

The spelling of 158115770 in words is "one hundred fifty-eight million, one hundred fifteen thousand, seven hundred seventy".