158185452 has 48 divisors (see below), whose sum is σ = 375943680. Its totient is φ = 51758208.

The previous prime is 158185451. The next prime is 158185457. The reversal of 158185452 is 254581851.

It is a self number, because there is not a number n which added to its sum of digits gives 158185452.

It is not an unprimeable number, because it can be changed into a prime (158185451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314233 + ... + 314735.

It is an arithmetic number, because the mean of its divisors is an integer number (7832160).

Almost surely, 2^158185452 is an apocalyptic number.

158185452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158185452 is an abundant number, since it is smaller than the sum of its proper divisors (217758228).

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

158185452 is a wasteful number, since it uses less digits than its factorization.

158185452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942 (or 940 counting only the distinct ones).

The product of its digits is 64000, while the sum is 39.

The square root of 158185452 is about 12577.1798110705. The cubic root of 158185452 is about 540.8234487560.

The spelling of 158185452 in words is "one hundred fifty-eight million, one hundred eighty-five thousand, four hundred fifty-two".