1393457107 has 4 divisors (see below), whose sum is σ = 1592522416. Its totient is φ = 1194391800.

The previous prime is 1393457101. The next prime is 1393457137. The reversal of 1393457107 is 7017543931.

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

It is not a de Polignac number, because 1393457107 - 2¹¹ = 1393455059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1393457107.

It is not an unprimeable number, because it can be changed into a prime (1393457101) 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, 99532644 + ... + 99532657.

It is an arithmetic number, because the mean of its divisors is an integer number (398130604).

Almost surely, 2^1393457107 is an apocalyptic number.

1393457107 is a deficient number, since it is larger than the sum of its proper divisors (199065309).

1393457107 is an equidigital number, since it uses as much as digits as its factorization.

1393457107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199065308.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1393457107 is about 37329.0383883646. The cubic root of 1393457107 is about 1116.9434910728.

The spelling of 1393457107 in words is "one billion, three hundred ninety-three million, four hundred fifty-seven thousand, one hundred seven".