1420012091 has 16 divisors (see below), whose sum is σ = 1548432864. Its totient is φ = 1296981504.

The previous prime is 1420012073. The next prime is 1420012103. The reversal of 1420012091 is 1902100241.

It is a cyclic number.

It is not a de Polignac number, because 1420012091 - 2¹⁰ = 1420011067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420012021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108581 + ... + 120953.

It is an arithmetic number, because the mean of its divisors is an integer number (96777054).

Almost surely, 2^1420012091 is an apocalyptic number.

1420012091 is a deficient number, since it is larger than the sum of its proper divisors (128420773).

1420012091 is a wasteful number, since it uses less digits than its factorization.

1420012091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12590.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1420012091 is about 37683.0477934044. The cubic root of 1420012091 is about 1123.9940547868.

The spelling of 1420012091 in words is "one billion, four hundred twenty million, twelve thousand, ninety-one".