140247827 has 2 divisors, whose sum is σ = 140247828. Its totient is φ = 140247826.

The previous prime is 140247823. The next prime is 140247851. The reversal of 140247827 is 728742041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140247827 - 2² = 140247823 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140247823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70123913 + 70123914.

It is an arithmetic number, because the mean of its divisors is an integer number (70123914).

Almost surely, 2^140247827 is an apocalyptic number.

140247827 is a deficient number, since it is larger than the sum of its proper divisors (1).

140247827 is an equidigital number, since it uses as much as digits as its factorization.

140247827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 140247827 is about 11842.6275378397. The cubic root of 140247827 is about 519.5556201049. Note that the first 3 decimals are identical.

Adding to 140247827 its reverse (728742041), we get a palindrome (868989868).

The spelling of 140247827 in words is "one hundred forty million, two hundred forty-seven thousand, eight hundred twenty-seven".