140419091 has 2 divisors, whose sum is σ = 140419092. Its totient is φ = 140419090.

The previous prime is 140419087. The next prime is 140419093. The reversal of 140419091 is 190914041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140419091 - 2² = 140419087 is a prime.

It is a super-2 number, since 2×140419091² = 39435042234532562, which contains 22 as substring.

Together with 140419093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140419093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70209545 + 70209546.

It is an arithmetic number, because the mean of its divisors is an integer number (70209546).

Almost surely, 2^140419091 is an apocalyptic number.

140419091 is a deficient number, since it is larger than the sum of its proper divisors (1).

140419091 is an equidigital number, since it uses as much as digits as its factorization.

140419091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 140419091 is about 11849.8561594646. The cubic root of 140419091 is about 519.7670196451.

It can be divided in two parts, 14041 and 9091, that added together give a palindrome (23132).

The spelling of 140419091 in words is "one hundred forty million, four hundred nineteen thousand, ninety-one".