158418180 has 60 divisors (see below), whose sum is σ = 496968780. Its totient is φ = 42244416.

The previous prime is 158418179. The next prime is 158418187. The reversal of 158418180 is 81814851.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69455556 + 88962624 = 8334^2 + 9432^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (158418187) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47275 + ... + 50514.

It is an arithmetic number, because the mean of its divisors is an integer number (8282813).

Almost surely, 2^158418180 is an apocalyptic number.

158418180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158418180 is an abundant number, since it is smaller than the sum of its proper divisors (338550600).

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

158418180 is a wasteful number, since it uses less digits than its factorization.

158418180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97810 (or 97799 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 158418180 is about 12586.4284052308. The cubic root of 158418180 is about 541.0885449513.

The spelling of 158418180 in words is "one hundred fifty-eight million, four hundred eighteen thousand, one hundred eighty".