158087287 has 4 divisors (see below), whose sum is σ = 161070120. Its totient is φ = 155104456.

The previous prime is 158087269. The next prime is 158087291. The reversal of 158087287 is 782780851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782780851 = 293 ⋅2671607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158087287 is a prime.

It is a super-2 number, since 2×158087287² = 49983180622040738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158087887) 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, 1491337 + ... + 1491442.

It is an arithmetic number, because the mean of its divisors is an integer number (40267530).

Almost surely, 2^158087287 is an apocalyptic number.

158087287 is a deficient number, since it is larger than the sum of its proper divisors (2982833).

158087287 is an equidigital number, since it uses as much as digits as its factorization.

158087287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982832.

The product of its (nonzero) digits is 250880, while the sum is 46.

The square root of 158087287 is about 12573.2767010036. The cubic root of 158087287 is about 540.7115528369.

The spelling of 158087287 in words is "one hundred fifty-eight million, eighty-seven thousand, two hundred eighty-seven".