140399117 has 2 divisors, whose sum is σ = 140399118. Its totient is φ = 140399116.

The previous prime is 140399101. The next prime is 140399123. The reversal of 140399117 is 711993041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136282276 + 4116841 = 11674^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 140399117 - 2⁴ = 140399101 is a prime.

It is equal to p_7933436 and since 140399117 and 7933436 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140399137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70199558 + 70199559.

It is an arithmetic number, because the mean of its divisors is an integer number (70199559).

Almost surely, 2^140399117 is an apocalyptic number.

It is an amenable number.

140399117 is a deficient number, since it is larger than the sum of its proper divisors (1).

140399117 is an equidigital number, since it uses as much as digits as its factorization.

140399117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 140399117 is about 11849.0133344511. The cubic root of 140399117 is about 519.7423736166.

The spelling of 140399117 in words is "one hundred forty million, three hundred ninety-nine thousand, one hundred seventeen".