87143100 has 72 divisors (see below), whose sum is σ = 275065728. Its totient is φ = 21124800.

The previous prime is 87143087. The next prime is 87143137. The reversal of 87143100 is 134178.

It is a super-2 number, since 2×87143100² = 15187839755220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9904 + ... + 16503.

Almost surely, 2^87143100 is an apocalyptic number.

It is an amenable number.

87143100 is an abundant number, since it is smaller than the sum of its proper divisors (187922628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87143100 is a wasteful number, since it uses less digits than its factorization.

87143100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26435 (or 26428 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 87143100 is about 9335.0468665133. The cubic root of 87143100 is about 443.3475727363.

Adding to 87143100 its reverse (134178), we get a palindrome (87277278).

The spelling of 87143100 in words is "eighty-seven million, one hundred forty-three thousand, one hundred".