140102087 has 2 divisors, whose sum is σ = 140102088. Its totient is φ = 140102086.

The previous prime is 140102077. The next prime is 140102089. The reversal of 140102087 is 780201041.

140102087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140102087 - 2⁶ = 140102023 is a prime.

Together with 140102089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140102089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70051043 + 70051044.

It is an arithmetic number, because the mean of its divisors is an integer number (70051044).

Almost surely, 2^140102087 is an apocalyptic number.

140102087 is a deficient number, since it is larger than the sum of its proper divisors (1).

140102087 is an equidigital number, since it uses as much as digits as its factorization.

140102087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 140102087 is about 11836.4727431782. The cubic root of 140102087 is about 519.3755905071.

The spelling of 140102087 in words is "one hundred forty million, one hundred two thousand, eighty-seven".