140739227 has 2 divisors, whose sum is σ = 140739228. Its totient is φ = 140739226.

The previous prime is 140739173. The next prime is 140739257. The reversal of 140739227 is 722937041.

It is a strong prime.

It is an emirp because it is prime and its reverse (722937041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140739227 - 2¹² = 140735131 is a prime.

It is a Chen prime.

It is equal to p_7951562 and since 140739227 and 7951562 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (140739257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70369613 + 70369614.

It is an arithmetic number, because the mean of its divisors is an integer number (70369614).

Almost surely, 2^140739227 is an apocalyptic number.

140739227 is a deficient number, since it is larger than the sum of its proper divisors (1).

140739227 is an equidigital number, since it uses as much as digits as its factorization.

140739227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 140739227 is about 11863.3564811987. The cubic root of 140739227 is about 520.1617186849.

The spelling of 140739227 in words is "one hundred forty million, seven hundred thirty-nine thousand, two hundred twenty-seven".