158404465 has 4 divisors (see below), whose sum is σ = 190085364. Its totient is φ = 126723568.

The previous prime is 158404423. The next prime is 158404471. The reversal of 158404465 is 564404851.

158404465 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 an emirpimes, since its reverse is a distinct semiprime: 564404851 = 67 ⋅8423953.

It can be written as a sum of positive squares in 2 ways, for example, as 64256256 + 94148209 = 8016^2 + 9703^2 .

It is a cyclic number.

It is not a de Polignac number, because 158404465 - 2¹¹ = 158402417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15840442 + ... + 15840451.

It is an arithmetic number, because the mean of its divisors is an integer number (47521341).

Almost surely, 2^158404465 is an apocalyptic number.

It is an amenable number.

158404465 is a deficient number, since it is larger than the sum of its proper divisors (31680899).

158404465 is an equidigital number, since it uses as much as digits as its factorization.

158404465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31680898.

The product of its (nonzero) digits is 76800, while the sum is 37.

The square root of 158404465 is about 12585.8835605610. The cubic root of 158404465 is about 541.0729296484.

The spelling of 158404465 in words is "one hundred fifty-eight million, four hundred four thousand, four hundred sixty-five".