140254397 has 2 divisors, whose sum is σ = 140254398. Its totient is φ = 140254396.

The previous prime is 140254393. The next prime is 140254417. The reversal of 140254397 is 793452041.

140254397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97495876 + 42758521 = 9874^2 + 6539^2 .

It is a cyclic number.

It is not a de Polignac number, because 140254397 - 2² = 140254393 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140254393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70127198 + 70127199.

It is an arithmetic number, because the mean of its divisors is an integer number (70127199).

Almost surely, 2^140254397 is an apocalyptic number.

It is an amenable number.

140254397 is a deficient number, since it is larger than the sum of its proper divisors (1).

140254397 is an equidigital number, since it uses as much as digits as its factorization.

140254397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 140254397 is about 11842.9049223575. The cubic root of 140254397 is about 519.5637329510.

The spelling of 140254397 in words is "one hundred forty million, two hundred fifty-four thousand, three hundred ninety-seven".