140157349 has 2 divisors, whose sum is σ = 140157350. Its totient is φ = 140157348.

The previous prime is 140157341. The next prime is 140157359. The reversal of 140157349 is 943751041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125664100 + 14493249 = 11210^2 + 3807^2 .

It is a cyclic number.

It is not a de Polignac number, because 140157349 - 2³ = 140157341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140157341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70078674 + 70078675.

It is an arithmetic number, because the mean of its divisors is an integer number (70078675).

Almost surely, 2^140157349 is an apocalyptic number.

It is an amenable number.

140157349 is a deficient number, since it is larger than the sum of its proper divisors (1).

140157349 is an equidigital number, since it uses as much as digits as its factorization.

140157349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 140157349 is about 11838.8069077927. The cubic root of 140157349 is about 519.4438691974.

The spelling of 140157349 in words is "one hundred forty million, one hundred fifty-seven thousand, three hundred forty-nine".