140102569 has 2 divisors, whose sum is σ = 140102570. Its totient is φ = 140102568.

The previous prime is 140102551. The next prime is 140102579. The reversal of 140102569 is 965201041.

140102569 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 can be written as a sum of positive squares in only one way, i.e., 140067225 + 35344 = 11835^2 + 188^2 .

It is a cyclic number.

It is not a de Polignac number, because 140102569 - 2⁹ = 140102057 is a prime.

It is a super-2 number, since 2×140102569² = 39257459680799522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140102579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70051284 + 70051285.

It is an arithmetic number, because the mean of its divisors is an integer number (70051285).

Almost surely, 2^140102569 is an apocalyptic number.

It is an amenable number.

140102569 is a deficient number, since it is larger than the sum of its proper divisors (1).

140102569 is an equidigital number, since it uses as much as digits as its factorization.

140102569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 140102569 is about 11836.4931039561. The cubic root of 140102569 is about 519.3761861175.

The spelling of 140102569 in words is "one hundred forty million, one hundred two thousand, five hundred sixty-nine".