158276987 has 8 divisors (see below), whose sum is σ = 182822832. Its totient is φ = 135424000.

The previous prime is 158276971. The next prime is 158277019. The reversal of 158276987 is 789672851.

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

It is a cyclic number.

It is not a de Polignac number, because 158276987 - 2⁴ = 158276971 is a prime.

It is a super-2 number, since 2×158276987² = 50103209227596338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158276947) 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, 423014 + ... + 423387.

It is an arithmetic number, because the mean of its divisors is an integer number (22852854).

Almost surely, 2^158276987 is an apocalyptic number.

158276987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

158276987 is a deficient number, since it is larger than the sum of its proper divisors (24545845).

158276987 is a wasteful number, since it uses less digits than its factorization.

158276987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846429.

The product of its digits is 1693440, while the sum is 53.

The square root of 158276987 is about 12580.8182166344. The cubic root of 158276987 is about 540.9277455970.

The spelling of 158276987 in words is "one hundred fifty-eight million, two hundred seventy-six thousand, nine hundred eighty-seven".