1401100939 has 4 divisors (see below), whose sum is σ = 1601258224. Its totient is φ = 1200943656.

The previous prime is 1401100931. The next prime is 1401100999. The reversal of 1401100939 is 9390011041.

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: 9390011041 = 29671 ⋅316471.

It is a cyclic number.

It is not a de Polignac number, because 1401100939 - 2³ = 1401100931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1401100931) 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, 100078632 + ... + 100078645.

It is an arithmetic number, because the mean of its divisors is an integer number (400314556).

Almost surely, 2^1401100939 is an apocalyptic number.

1401100939 is a deficient number, since it is larger than the sum of its proper divisors (200157285).

1401100939 is an equidigital number, since it uses as much as digits as its factorization.

1401100939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200157284.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 1401100939 is about 37431.2828927890. The cubic root of 1401100939 is about 1118.9821053163.

The spelling of 1401100939 in words is "one billion, four hundred one million, one hundred thousand, nine hundred thirty-nine".