158420077 has 4 divisors (see below), whose sum is σ = 159958240. Its totient is φ = 156881916.

The previous prime is 158420057. The next prime is 158420117. The reversal of 158420077 is 770024851.

It is a happy number.

158420077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158420077 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 (158420057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 768927 + ... + 769132.

It is an arithmetic number, because the mean of its divisors is an integer number (39989560).

Almost surely, 2^158420077 is an apocalyptic number.

It is an amenable number.

158420077 is a deficient number, since it is larger than the sum of its proper divisors (1538163).

158420077 is a wasteful number, since it uses less digits than its factorization.

158420077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538162.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 158420077 is about 12586.5037639529. The cubic root of 158420077 is about 541.0907047221.

The spelling of 158420077 in words is "one hundred fifty-eight million, four hundred twenty thousand, seventy-seven".