140302469 has 2 divisors, whose sum is σ = 140302470. Its totient is φ = 140302468.

The previous prime is 140302429. The next prime is 140302471. The reversal of 140302469 is 964203041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80317444 + 59985025 = 8962^2 + 7745^2 .

It is an emirp because it is prime and its reverse (964203041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140302469 - 2¹² = 140298373 is a prime.

It is a super-2 number, since 2×140302469² = 39369565614991922, which contains 22 as substring.

Together with 140302471, 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 (140302429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70151234 + 70151235.

It is an arithmetic number, because the mean of its divisors is an integer number (70151235).

Almost surely, 2^140302469 is an apocalyptic number.

It is an amenable number.

140302469 is a deficient number, since it is larger than the sum of its proper divisors (1).

140302469 is an equidigital number, since it uses as much as digits as its factorization.

140302469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 140302469 is about 11844.9343180956. The cubic root of 140302469 is about 519.6230860867.

The spelling of 140302469 in words is "one hundred forty million, three hundred two thousand, four hundred sixty-nine".