158071811 has 16 divisors (see below), whose sum is σ = 171763200. Its totient is φ = 144993888.

The previous prime is 158071799. The next prime is 158071813. The reversal of 158071811 is 118170851.

It is a cyclic number.

It is not a de Polignac number, because 158071811 - 2⁶ = 158071747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158071813) 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, 78560 + ... + 80546.

It is an arithmetic number, because the mean of its divisors is an integer number (10735200).

Almost surely, 2^158071811 is an apocalyptic number.

158071811 is a deficient number, since it is larger than the sum of its proper divisors (13691389).

158071811 is a wasteful number, since it uses less digits than its factorization.

158071811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138.

The product of its (nonzero) digits is 2240, while the sum is 32.

The square root of 158071811 is about 12572.6612536885. The cubic root of 158071811 is about 540.6939078906.

The spelling of 158071811 in words is "one hundred fifty-eight million, seventy-one thousand, eight hundred eleven".