140314409 has 2 divisors, whose sum is σ = 140314410. Its totient is φ = 140314408.

The previous prime is 140314399. The next prime is 140314429. The reversal of 140314409 is 904413041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128754409 + 11560000 = 11347^2 + 3400^2 .

It is a cyclic number.

It is not a de Polignac number, because 140314409 - 2¹⁶ = 140248873 is a prime.

It is not a weakly prime, because it can be changed into another prime (140314429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70157204 + 70157205.

It is an arithmetic number, because the mean of its divisors is an integer number (70157205).

Almost surely, 2^140314409 is an apocalyptic number.

It is an amenable number.

140314409 is a deficient number, since it is larger than the sum of its proper divisors (1).

140314409 is an equidigital number, since it uses as much as digits as its factorization.

140314409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 140314409 is about 11845.4383202987. The cubic root of 140314409 is about 519.6378259643.

The spelling of 140314409 in words is "one hundred forty million, three hundred fourteen thousand, four hundred nine".