158766101 has 4 divisors (see below), whose sum is σ = 170978892. Its totient is φ = 146553312.

The previous prime is 158766073. The next prime is 158766131. The reversal of 158766101 is 101667851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88642225 + 70123876 = 9415^2 + 8374^2 .

It is a cyclic number.

It is not a de Polignac number, because 158766101 - 2⁶ = 158766037 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 (158766131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106376 + ... + 6106401.

It is an arithmetic number, because the mean of its divisors is an integer number (42744723).

Almost surely, 2^158766101 is an apocalyptic number.

It is an amenable number.

158766101 is a deficient number, since it is larger than the sum of its proper divisors (12212791).

158766101 is a wasteful number, since it uses less digits than its factorization.

158766101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12212790.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 158766101 is about 12600.2421008487. The cubic root of 158766101 is about 541.4843716137.

The spelling of 158766101 in words is "one hundred fifty-eight million, seven hundred sixty-six thousand, one hundred one".