158469749 has 8 divisors (see below), whose sum is σ = 162370560. Its totient is φ = 154578816.

The previous prime is 158469743. The next prime is 158469763. The reversal of 158469749 is 947964851.

158469749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158469749 is a prime.

It is a super-2 number, since 2×158469749² = 50225322696246002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 158469749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158469743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37964 + ... + 41930.

It is an arithmetic number, because the mean of its divisors is an integer number (20296320).

Almost surely, 2^158469749 is an apocalyptic number.

It is an amenable number.

158469749 is a deficient number, since it is larger than the sum of its proper divisors (3900811).

158469749 is an equidigital number, since it uses as much as digits as its factorization.

158469749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939.

The product of its digits is 2177280, while the sum is 53.

The square root of 158469749 is about 12588.4768339939. The cubic root of 158469749 is about 541.1472511090.

The spelling of 158469749 in words is "one hundred fifty-eight million, four hundred sixty-nine thousand, seven hundred forty-nine".