140203387 has 2 divisors, whose sum is σ = 140203388. Its totient is φ = 140203386.

The previous prime is 140203367. The next prime is 140203493. The reversal of 140203387 is 783302041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140203387 - 2²⁷ = 5985659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140203367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70101693 + 70101694.

It is an arithmetic number, because the mean of its divisors is an integer number (70101694).

Almost surely, 2^140203387 is an apocalyptic number.

140203387 is a deficient number, since it is larger than the sum of its proper divisors (1).

140203387 is an equidigital number, since it uses as much as digits as its factorization.

140203387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 140203387 is about 11840.7511163777. The cubic root of 140203387 is about 519.5007375174.

The spelling of 140203387 in words is "one hundred forty million, two hundred three thousand, three hundred eighty-seven".