140852381 has 2 divisors, whose sum is σ = 140852382. Its totient is φ = 140852380.

The previous prime is 140852359. The next prime is 140852389. The reversal of 140852381 is 183258041.

140852381 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., 127464100 + 13388281 = 11290^2 + 3659^2 .

It is an emirp because it is prime and its reverse (183258041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140852381 - 2¹⁴ = 140835997 is a prime.

It is a super-2 number, since 2×140852381² = 39678786466738322, 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 (140852389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70426190 + 70426191.

It is an arithmetic number, because the mean of its divisors is an integer number (70426191).

Almost surely, 2^140852381 is an apocalyptic number.

It is an amenable number.

140852381 is a deficient number, since it is larger than the sum of its proper divisors (1).

140852381 is an equidigital number, since it uses as much as digits as its factorization.

140852381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 140852381 is about 11868.1245780452. The cubic root of 140852381 is about 520.3010842653.

The spelling of 140852381 in words is "one hundred forty million, eight hundred fifty-two thousand, three hundred eighty-one".