158185383 has 16 divisors (see below), whose sum is σ = 214843392. Its totient is φ = 103500000.

The previous prime is 158185361. The next prime is 158185427. The reversal of 158185383 is 383581851.

It is a happy number.

It is not a de Polignac number, because 158185383 - 2¹⁰ = 158184359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158185303) 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, 136858 + ... + 138008.

It is an arithmetic number, because the mean of its divisors is an integer number (13427712).

Almost surely, 2^158185383 is an apocalyptic number.

158185383 is a deficient number, since it is larger than the sum of its proper divisors (56658009).

158185383 is a wasteful number, since it uses less digits than its factorization.

158185383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966.

The product of its digits is 115200, while the sum is 42.

The square root of 158185383 is about 12577.1770680070. The cubic root of 158185383 is about 540.8233701208.

The spelling of 158185383 in words is "one hundred fifty-eight million, one hundred eighty-five thousand, three hundred eighty-three".