87120351 has 12 divisors (see below), whose sum is σ = 126177480. Its totient is φ = 57924720.

The previous prime is 87120347. The next prime is 87120361. The reversal of 87120351 is 15302178.

It is not a de Polignac number, because 87120351 - 2² = 87120347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87120361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9360 + ... + 16181.

It is an arithmetic number, because the mean of its divisors is an integer number (10514790).

Almost surely, 2^87120351 is an apocalyptic number.

87120351 is a deficient number, since it is larger than the sum of its proper divisors (39057129).

87120351 is a wasteful number, since it uses less digits than its factorization.

87120351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25926 (or 25923 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 87120351 is about 9333.8283142556. The cubic root of 87120351 is about 443.3089902526.

The spelling of 87120351 in words is "eighty-seven million, one hundred twenty thousand, three hundred fifty-one".