87141547 has 4 divisors (see below), whose sum is σ = 87274440. Its totient is φ = 87008656.

The previous prime is 87141497. The next prime is 87141553. The reversal of 87141547 is 74514178.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74514178 = 2 ⋅37257089.

It is a cyclic number.

It is not a de Polignac number, because 87141547 - 2¹¹ = 87139499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87141557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65458 + ... + 66775.

It is an arithmetic number, because the mean of its divisors is an integer number (21818610).

Almost surely, 2^87141547 is an apocalyptic number.

87141547 is a deficient number, since it is larger than the sum of its proper divisors (132893).

87141547 is a wasteful number, since it uses less digits than its factorization.

87141547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132892.

The product of its digits is 31360, while the sum is 37.

The square root of 87141547 is about 9334.9636849856. The cubic root of 87141547 is about 443.3449390496.

The spelling of 87141547 in words is "eighty-seven million, one hundred forty-one thousand, five hundred forty-seven".