1419739091 has 2 divisors, whose sum is σ = 1419739092. Its totient is φ = 1419739090.

The previous prime is 1419739063. The next prime is 1419739151. The reversal of 1419739091 is 1909379141.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1419739091 - 2²² = 1415544787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1419139091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 709869545 + 709869546.

It is an arithmetic number, because the mean of its divisors is an integer number (709869546).

Almost surely, 2^1419739091 is an apocalyptic number.

1419739091 is the 20141-st centered heptagonal number.

1419739091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1419739091 is an equidigital number, since it uses as much as digits as its factorization.

1419739091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 44.

The square root of 1419739091 is about 37679.4253008190. The cubic root of 1419739091 is about 1123.9220201787.

The spelling of 1419739091 in words is "one billion, four hundred nineteen million, seven hundred thirty-nine thousand, ninety-one".