85615147 has 8 divisors (see below), whose sum is σ = 87181920. Its totient is φ = 84053760.

The previous prime is 85615139. The next prime is 85615183. The reversal of 85615147 is 74151658.

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

It is a cyclic number.

It is not a de Polignac number, because 85615147 - 2³ = 85615139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85613147) 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, 44379 + ... + 46267.

It is an arithmetic number, because the mean of its divisors is an integer number (10897740).

Almost surely, 2^85615147 is an apocalyptic number.

85615147 is a deficient number, since it is larger than the sum of its proper divisors (1566773).

85615147 is a wasteful number, since it uses less digits than its factorization.

85615147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693.

The product of its digits is 33600, while the sum is 37.

The square root of 85615147 is about 9252.8453461624. The cubic root of 85615147 is about 440.7410840936.

The spelling of 85615147 in words is "eighty-five million, six hundred fifteen thousand, one hundred forty-seven".