158077091 has 8 divisors (see below), whose sum is σ = 170271744. Its totient is φ = 146325960.

The previous prime is 158077079. The next prime is 158077109. The reversal of 158077091 is 190770851.

158077091 = T₃₁₇₈ + T₃₁₇₉ + ... + T₃₂₀₈.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158077091 - 2¹⁸ = 157814947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158077001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110141 + ... + 111566.

It is an arithmetic number, because the mean of its divisors is an integer number (21283968).

Almost surely, 2^158077091 is an apocalyptic number.

158077091 is a deficient number, since it is larger than the sum of its proper divisors (12194653).

158077091 is a wasteful number, since it uses less digits than its factorization.

158077091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221761.

The product of its (nonzero) digits is 17640, while the sum is 38.

The square root of 158077091 is about 12572.8712313457. The cubic root of 158077091 is about 540.6999280068.

The spelling of 158077091 in words is "one hundred fifty-eight million, seventy-seven thousand, ninety-one".