93815138147 has 4 divisors (see below), whose sum is σ = 93828522480. Its totient is φ = 93801753816.

The previous prime is 93815138117. The next prime is 93815138177. The reversal of 93815138147 is 74183151839.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (93815138117) and next prime (93815138177).

It is a cyclic number.

It is not a de Polignac number, because 93815138147 - 2¹² = 93815134051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 93815138095 and 93815138104.

It is not an unprimeable number, because it can be changed into a prime (93815138107) 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, 6681647 + ... + 6695672.

It is an arithmetic number, because the mean of its divisors is an integer number (23457130620).

Almost surely, 2^93815138147 is an apocalyptic number.

93815138147 is a deficient number, since it is larger than the sum of its proper divisors (13384333).

93815138147 is a wasteful number, since it uses less digits than its factorization.

93815138147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13384332.

The product of its digits is 725760, while the sum is 50.

The spelling of 93815138147 in words is "ninety-three billion, eight hundred fifteen million, one hundred thirty-eight thousand, one hundred forty-seven".