140415205187 has 2 divisors, whose sum is σ = 140415205188. Its totient is φ = 140415205186.

The previous prime is 140415205163. The next prime is 140415205193. The reversal of 140415205187 is 781502514041.

It is a strong prime.

It is an emirp because it is prime and its reverse (781502514041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140415205187 - 2¹⁸ = 140414943043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140415205187.

It is not a weakly prime, because it can be changed into another prime (140415201187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70207602593 + 70207602594.

It is an arithmetic number, because the mean of its divisors is an integer number (70207602594).

Almost surely, 2^140415205187 is an apocalyptic number.

140415205187 is a deficient number, since it is larger than the sum of its proper divisors (1).

140415205187 is an equidigital number, since it uses as much as digits as its factorization.

140415205187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 38.

The spelling of 140415205187 in words is "one hundred forty billion, four hundred fifteen million, two hundred five thousand, one hundred eighty-seven".