87240541 has 12 divisors (see below), whose sum is σ = 94088736. Its totient is φ = 80735160.

The previous prime is 87240529. The next prime is 87240547. The reversal of 87240541 is 14504278.

It is not a de Polignac number, because 87240541 - 2⁵ = 87240509 is a prime.

It is a super-2 number, since 2×87240541² = 15221823987945362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87240547) 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, 20130 + ... + 24076.

It is an arithmetic number, because the mean of its divisors is an integer number (7840728).

Almost surely, 2^87240541 is an apocalyptic number.

It is an amenable number.

87240541 is a deficient number, since it is larger than the sum of its proper divisors (6848195).

87240541 is a wasteful number, since it uses less digits than its factorization.

87240541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 87240541 is about 9340.2645037493. The cubic root of 87240541 is about 443.5127575073.

The spelling of 87240541 in words is "eighty-seven million, two hundred forty thousand, five hundred forty-one".