87241142 has 4 divisors (see below), whose sum is σ = 130861716. Its totient is φ = 43620570.

The previous prime is 87241129. The next prime is 87241171. The reversal of 87241142 is 24114278.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24114278 = 2 ⋅12057139.

It is a super-2 number, since 2×87241142² = 15222033714928328, 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 as a sum of consecutive naturals, namely, 21810284 + ... + 21810287.

It is an arithmetic number, because the mean of its divisors is an integer number (32715429).

Almost surely, 2^87241142 is an apocalyptic number.

87241142 is a deficient number, since it is larger than the sum of its proper divisors (43620574).

87241142 is a wasteful number, since it uses less digits than its factorization.

87241142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43620573.

The product of its digits is 3584, while the sum is 29.

The square root of 87241142 is about 9340.2966762304. The cubic root of 87241142 is about 443.5137759580.

The spelling of 87241142 in words is "eighty-seven million, two hundred forty-one thousand, one hundred forty-two".