140867911 has 2 divisors, whose sum is σ = 140867912. Its totient is φ = 140867910.

The previous prime is 140867897. The next prime is 140867927. The reversal of 140867911 is 119768041.

140867911 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 is an emirp because it is prime and its reverse (119768041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140867911 - 2⁵ = 140867879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140867941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70433955 + 70433956.

It is an arithmetic number, because the mean of its divisors is an integer number (70433956).

Almost surely, 2^140867911 is an apocalyptic number.

140867911 is a deficient number, since it is larger than the sum of its proper divisors (1).

140867911 is an equidigital number, since it uses as much as digits as its factorization.

140867911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 140867911 is about 11868.7788335616. The cubic root of 140867911 is about 520.3202058895.

It can be divided in two parts, 140867 and 911, that added together give a triangular number (141778 = T₅₃₂).

The spelling of 140867911 in words is "one hundred forty million, eight hundred sixty-seven thousand, nine hundred eleven".