140346091 has 2 divisors, whose sum is σ = 140346092. Its totient is φ = 140346090.

The previous prime is 140346079. The next prime is 140346119. The reversal of 140346091 is 190643041.

140346091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (140346119) can be obtained adding 140346091 to its sum of digits (28).

It is a weak prime.

It is an emirp because it is prime and its reverse (190643041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140346091 - 2⁷ = 140345963 is a prime.

It is not a weakly prime, because it can be changed into another prime (140346691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70173045 + 70173046.

It is an arithmetic number, because the mean of its divisors is an integer number (70173046).

Almost surely, 2^140346091 is an apocalyptic number.

140346091 is a deficient number, since it is larger than the sum of its proper divisors (1).

140346091 is an equidigital number, since it uses as much as digits as its factorization.

140346091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 140346091 is about 11846.7755528667. The cubic root of 140346091 is about 519.6769332016.

The spelling of 140346091 in words is "one hundred forty million, three hundred forty-six thousand, ninety-one".