158426377 has 4 divisors (see below), whose sum is σ = 159879940. Its totient is φ = 156972816.

The previous prime is 158426371. The next prime is 158426413. The reversal of 158426377 is 773624851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773624851 = 29 ⋅26676719.

It can be written as a sum of positive squares in 2 ways, for example, as 137851081 + 20575296 = 11741^2 + 4536^2 .

It is a cyclic number.

It is not a de Polignac number, because 158426377 - 2⁷ = 158426249 is a prime.

It is a super-3 number, since 3×158426377³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158426371) 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, 726618 + ... + 726835.

It is an arithmetic number, because the mean of its divisors is an integer number (39969985).

Almost surely, 2^158426377 is an apocalyptic number.

It is an amenable number.

158426377 is a deficient number, since it is larger than the sum of its proper divisors (1453563).

158426377 is a wasteful number, since it uses less digits than its factorization.

158426377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453562.

The product of its digits is 282240, while the sum is 43.

The square root of 158426377 is about 12586.7540295344. The cubic root of 158426377 is about 541.0978772689.

The spelling of 158426377 in words is "one hundred fifty-eight million, four hundred twenty-six thousand, three hundred seventy-seven".