140914381 has 2 divisors, whose sum is σ = 140914382. Its totient is φ = 140914380.

The previous prime is 140914337. The next prime is 140914409. The reversal of 140914381 is 183419041.

140914381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92736900 + 48177481 = 9630^2 + 6941^2 .

It is a cyclic number.

It is not a de Polignac number, because 140914381 - 2⁹ = 140913869 is a prime.

It is a super-2 number, since 2×140914381² = 39713725545226322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140914181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70457190 + 70457191.

It is an arithmetic number, because the mean of its divisors is an integer number (70457191).

Almost surely, 2^140914381 is an apocalyptic number.

It is an amenable number.

140914381 is a deficient number, since it is larger than the sum of its proper divisors (1).

140914381 is an equidigital number, since it uses as much as digits as its factorization.

140914381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 140914381 is about 11870.7363293100. The cubic root of 140914381 is about 520.3774146167.

The spelling of 140914381 in words is "one hundred forty million, nine hundred fourteen thousand, three hundred eighty-one".