158542977 has 4 divisors (see below), whose sum is σ = 211390640. Its totient is φ = 105695316.

The previous prime is 158542963. The next prime is 158542987. The reversal of 158542977 is 779245851.

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: 779245851 = 3 ⋅259748617.

It is not a de Polignac number, because 158542977 - 2⁴ = 158542961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158542907) 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, 26423827 + ... + 26423832.

It is an arithmetic number, because the mean of its divisors is an integer number (52847660).

Almost surely, 2^158542977 is an apocalyptic number.

It is an amenable number.

158542977 is a deficient number, since it is larger than the sum of its proper divisors (52847663).

158542977 is an equidigital number, since it uses as much as digits as its factorization.

158542977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52847662.

The product of its digits is 705600, while the sum is 48.

The square root of 158542977 is about 12591.3850310440. The cubic root of 158542977 is about 541.2305919966.

The spelling of 158542977 in words is "one hundred fifty-eight million, five hundred forty-two thousand, nine hundred seventy-seven".