158277077 has 4 divisors (see below), whose sum is σ = 180888096. Its totient is φ = 135666060.

The previous prime is 158277061. The next prime is 158277107. The reversal of 158277077 is 770772851.

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, and also an emirpimes, since its reverse is a distinct semiprime: 770772851 = 6907 ⋅111593.

It is a cyclic number.

It is not a de Polignac number, because 158277077 - 2⁴ = 158277061 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 (158277377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11305499 + ... + 11305512.

It is an arithmetic number, because the mean of its divisors is an integer number (45222024).

Almost surely, 2^158277077 is an apocalyptic number.

It is an amenable number.

158277077 is a deficient number, since it is larger than the sum of its proper divisors (22611019).

158277077 is an equidigital number, since it uses as much as digits as its factorization.

158277077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22611018.

The product of its (nonzero) digits is 192080, while the sum is 44.

The square root of 158277077 is about 12580.8217935078. The cubic root of 158277077 is about 540.9278481250.

The spelling of 158277077 in words is "one hundred fifty-eight million, two hundred seventy-seven thousand, seventy-seven".