140341381 has 2 divisors, whose sum is σ = 140341382. Its totient is φ = 140341380.

The previous prime is 140341373. The next prime is 140341441. The reversal of 140341381 is 183143041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130165281 + 10176100 = 11409^2 + 3190^2 .

It is an emirp because it is prime and its reverse (183143041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140341381 - 2³ = 140341373 is a prime.

It is a super-2 number, since 2×140341381² = 39391406441974322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140341321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70170690 + 70170691.

It is an arithmetic number, because the mean of its divisors is an integer number (70170691).

Almost surely, 2^140341381 is an apocalyptic number.

It is an amenable number.

140341381 is a deficient number, since it is larger than the sum of its proper divisors (1).

140341381 is an equidigital number, since it uses as much as digits as its factorization.

140341381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 140341381 is about 11846.5767629303. The cubic root of 140341381 is about 519.6711197022.

The spelling of 140341381 in words is "one hundred forty million, three hundred forty-one thousand, three hundred eighty-one".