140752393 has 2 divisors, whose sum is σ = 140752394. Its totient is φ = 140752392.

The previous prime is 140752379. The next prime is 140752427. The reversal of 140752393 is 393257041.

It is an a-pointer prime, because the next prime (140752427) can be obtained adding 140752393 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132641289 + 8111104 = 11517^2 + 2848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140752393 is a prime.

It is a super-2 number, since 2×140752393² = 39622472270452898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140752093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70376196 + 70376197.

It is an arithmetic number, because the mean of its divisors is an integer number (70376197).

Almost surely, 2^140752393 is an apocalyptic number.

It is an amenable number.

140752393 is a deficient number, since it is larger than the sum of its proper divisors (1).

140752393 is an equidigital number, since it uses as much as digits as its factorization.

140752393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 140752393 is about 11863.9113702017. The cubic root of 140752393 is about 520.1779383648.

The spelling of 140752393 in words is "one hundred forty million, seven hundred fifty-two thousand, three hundred ninety-three".