158194132 has 12 divisors (see below), whose sum is σ = 277120116. Its totient is φ = 79016960.

The previous prime is 158194123. The next prime is 158194199. The reversal of 158194132 is 231491851.

It can be written as a sum of positive squares in 2 ways, for example, as 62663056 + 95531076 = 7916^2 + 9774^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15469 + ... + 23572.

It is an arithmetic number, because the mean of its divisors is an integer number (23093343).

Almost surely, 2^158194132 is an apocalyptic number.

It is an amenable number.

158194132 is a deficient number, since it is larger than the sum of its proper divisors (118925984).

158194132 is a wasteful number, since it uses less digits than its factorization.

158194132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40058 (or 40056 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 158194132 is about 12577.5248757456. The cubic root of 158194132 is about 540.8333406510.

The spelling of 158194132 in words is "one hundred fifty-eight million, one hundred ninety-four thousand, one hundred thirty-two".