140402527 has 2 divisors, whose sum is σ = 140402528. Its totient is φ = 140402526.

The previous prime is 140402519. The next prime is 140402567. The reversal of 140402527 is 725204041.

It is a weak prime.

It is an emirp because it is prime and its reverse (725204041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140402527 - 2³ = 140402519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140402567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70201263 + 70201264.

It is an arithmetic number, because the mean of its divisors is an integer number (70201264).

Almost surely, 2^140402527 is an apocalyptic number.

140402527 is a deficient number, since it is larger than the sum of its proper divisors (1).

140402527 is an equidigital number, since it uses as much as digits as its factorization.

140402527 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 140402527 is about 11849.1572274150. The cubic root of 140402527 is about 519.7465813998.

Adding to 140402527 its reverse (725204041), we get a palindrome (865606568).

The spelling of 140402527 in words is "one hundred forty million, four hundred two thousand, five hundred twenty-seven".