158386749 has 4 divisors (see below), whose sum is σ = 211182336. Its totient is φ = 105591164.

The previous prime is 158386733. The next prime is 158386771. The reversal of 158386749 is 947683851.

158386749 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, and also an emirpimes, since its reverse is a distinct semiprime: 947683851 = 3 ⋅315894617.

It is a cyclic number.

It is not a de Polignac number, because 158386749 - 2⁴ = 158386733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158386049) 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, 26397789 + ... + 26397794.

It is an arithmetic number, because the mean of its divisors is an integer number (52795584).

Almost surely, 2^158386749 is an apocalyptic number.

It is an amenable number.

158386749 is a deficient number, since it is larger than the sum of its proper divisors (52795587).

158386749 is an equidigital number, since it uses as much as digits as its factorization.

158386749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52795586.

The product of its digits is 1451520, while the sum is 51.

The square root of 158386749 is about 12585.1797364996. The cubic root of 158386749 is about 541.0527576468.

The spelling of 158386749 in words is "one hundred fifty-eight million, three hundred eighty-six thousand, seven hundred forty-nine".