1400013139 has 4 divisors (see below), whose sum is σ = 1600015024. Its totient is φ = 1200011256.

The previous prime is 1400013137. The next prime is 1400013149. The reversal of 1400013139 is 9313100041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400013139 - 2¹ = 1400013137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1400013137) 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, 100000932 + ... + 100000945.

It is an arithmetic number, because the mean of its divisors is an integer number (400003756).

Almost surely, 2^1400013139 is an apocalyptic number.

1400013139 is a deficient number, since it is larger than the sum of its proper divisors (200001885).

1400013139 is an equidigital number, since it uses as much as digits as its factorization.

1400013139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200001884.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1400013139 is about 37416.7494446003. The cubic root of 1400013139 is about 1118.6924417024.

The spelling of 1400013139 in words is "one billion, four hundred million, thirteen thousand, one hundred thirty-nine".