93140391 has 8 divisors (see below), whose sum is σ = 125326960. Its totient is φ = 61523712.

The previous prime is 93140381. The next prime is 93140401. The reversal of 93140391 is 19304139.

It is an interprime number because it is at equal distance from previous prime (93140381) and next prime (93140401).

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

It is not a de Polignac number, because 93140391 - 2¹⁹ = 92616103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93140381) 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, 142090 + ... + 142743.

It is an arithmetic number, because the mean of its divisors is an integer number (15665870).

Almost surely, 2^93140391 is an apocalyptic number.

93140391 is a deficient number, since it is larger than the sum of its proper divisors (32186569).

93140391 is a wasteful number, since it uses less digits than its factorization.

93140391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284945.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 93140391 is about 9650.9269502986. The cubic root of 93140391 is about 453.2933546179.

The spelling of 93140391 in words is "ninety-three million, one hundred forty thousand, three hundred ninety-one".