93145513 has 4 divisors (see below), whose sum is σ = 93230020. Its totient is φ = 93061008.

The previous prime is 93145501. The next prime is 93145519. The reversal of 93145513 is 31554139.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31554139 = 229 ⋅137791.

It can be written as a sum of positive squares in 2 ways, for example, as 21455424 + 71690089 = 4632^2 + 8467^2 .

It is a cyclic number.

It is not a de Polignac number, because 93145513 - 2⁹ = 93145001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93145519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40578 + ... + 42811.

It is an arithmetic number, because the mean of its divisors is an integer number (23307505).

Almost surely, 2^93145513 is an apocalyptic number.

It is an amenable number.

93145513 is a deficient number, since it is larger than the sum of its proper divisors (84507).

93145513 is a wasteful number, since it uses less digits than its factorization.

93145513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84506.

The product of its digits is 8100, while the sum is 31.

The square root of 93145513 is about 9651.1923097615. The cubic root of 93145513 is about 453.3016636733.

The spelling of 93145513 in words is "ninety-three million, one hundred forty-five thousand, five hundred thirteen".