158404487 has 4 divisors (see below), whose sum is σ = 167722416. Its totient is φ = 149086560.

The previous prime is 158404483. The next prime is 158404517. The reversal of 158404487 is 784404851.

158404487 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.

It is a cyclic number.

It is not a de Polignac number, because 158404487 - 2² = 158404483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158404483) 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, 4658939 + ... + 4658972.

It is an arithmetic number, because the mean of its divisors is an integer number (41930604).

Almost surely, 2^158404487 is an apocalyptic number.

158404487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

158404487 is a deficient number, since it is larger than the sum of its proper divisors (9317929).

158404487 is an equidigital number, since it uses as much as digits as its factorization.

158404487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9317928.

The product of its (nonzero) digits is 143360, while the sum is 41.

The square root of 158404487 is about 12585.8844345560. The cubic root of 158404487 is about 541.0729546974.

The spelling of 158404487 in words is "one hundred fifty-eight million, four hundred four thousand, four hundred eighty-seven".