158134665 has 32 divisors (see below), whose sum is σ = 273208320. Its totient is φ = 77642496.

The previous prime is 158134661. The next prime is 158134667. The reversal of 158134665 is 566431851.

158134665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 158134665 - 2² = 158134661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (158134661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92559 + ... + 94251.

It is an arithmetic number, because the mean of its divisors is an integer number (8537760).

Almost surely, 2^158134665 is an apocalyptic number.

158134665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

158134665 is a deficient number, since it is larger than the sum of its proper divisors (115073655).

158134665 is a wasteful number, since it uses less digits than its factorization.

158134665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its digits is 86400, while the sum is 39.

The square root of 158134665 is about 12575.1606351569. The cubic root of 158134665 is about 540.7655636594.

The spelling of 158134665 in words is "one hundred fifty-eight million, one hundred thirty-four thousand, six hundred sixty-five".