87256141 has 8 divisors (see below), whose sum is σ = 100690304. Its totient is φ = 74064240.

The previous prime is 87256129. The next prime is 87256153. The reversal of 87256141 is 14165278.

It is an interprime number because it is at equal distance from previous prime (87256129) and next prime (87256153).

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 87256141 - 2¹¹ = 87254093 is a prime.

It is a super-2 number, since 2×87256141² = 15227268284423762, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87256097 and 87256106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87256171) 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, 59790 + ... + 61231.

It is an arithmetic number, because the mean of its divisors is an integer number (12586288).

Almost surely, 2^87256141 is an apocalyptic number.

It is an amenable number.

87256141 is a deficient number, since it is larger than the sum of its proper divisors (13434163).

87256141 is a wasteful number, since it uses less digits than its factorization.

87256141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121131.

The product of its digits is 13440, while the sum is 34.

The square root of 87256141 is about 9341.0995605443. The cubic root of 87256141 is about 443.5391916497.

The spelling of 87256141 in words is "eighty-seven million, two hundred fifty-six thousand, one hundred forty-one".