158177133 has 6 divisors (see below), whose sum is σ = 228478094. Its totient is φ = 105451416.

The previous prime is 158177101. The next prime is 158177189. The reversal of 158177133 is 331771851.

It is a happy number.

158177133 is a `hidden beast` number, since 1 + 581 + 7 + 71 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 145878084 + 12299049 = 12078^2 + 3507^2 .

It is not a de Polignac number, because 158177133 - 2⁵ = 158177101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158177633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8787610 + ... + 8787627.

Almost surely, 2^158177133 is an apocalyptic number.

It is an amenable number.

158177133 is a deficient number, since it is larger than the sum of its proper divisors (70300961).

158177133 is a wasteful number, since it uses less digits than its factorization.

158177133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17575243 (or 17575240 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 158177133 is about 12576.8490887026. The cubic root of 158177133 is about 540.8139679239.

The spelling of 158177133 in words is "one hundred fifty-eight million, one hundred seventy-seven thousand, one hundred thirty-three".