87120151 has 4 divisors (see below), whose sum is σ = 87705000. Its totient is φ = 86535304.

The previous prime is 87120133. The next prime is 87120157. The reversal of 87120151 is 15102178.

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 87120151 - 2⁹ = 87119639 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 (87120157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292201 + ... + 292498.

It is an arithmetic number, because the mean of its divisors is an integer number (21926250).

Almost surely, 2^87120151 is an apocalyptic number.

87120151 is a deficient number, since it is larger than the sum of its proper divisors (584849).

87120151 is a wasteful number, since it uses less digits than its factorization.

87120151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584848.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 87120151 is about 9333.8176005319. The cubic root of 87120151 is about 443.3086510213.

The spelling of 87120151 in words is "eighty-seven million, one hundred twenty thousand, one hundred fifty-one".