87058043137 has 8 divisors (see below), whose sum is σ = 99269805096. Its totient is φ = 75634136832.

The previous prime is 87058043131. The next prime is 87058043147. The reversal of 87058043137 is 73134085078.

It is a Cunningham number, because it is equal to 295056²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 87058043136 = 1^2 + 295056^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87058043137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87058043131) 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, 196963678 + ... + 196964119.

It is an arithmetic number, because the mean of its divisors is an integer number (12408725637).

Almost surely, 2^87058043137 is an apocalyptic number.

It is an amenable number.

87058043137 is a deficient number, since it is larger than the sum of its proper divisors (12211761959).

87058043137 is a wasteful number, since it uses less digits than its factorization.

87058043137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393927827.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 87058043137 in words is "eighty-seven billion, fifty-eight million, forty-three thousand, one hundred thirty-seven".