140929427 has 2 divisors, whose sum is σ = 140929428. Its totient is φ = 140929426.

The previous prime is 140929421. The next prime is 140929429. The reversal of 140929427 is 724929041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140929427 - 2⁶ = 140929363 is a prime.

It is a super-2 number, since 2×140929427² = 39722206789096658, which contains 22 as substring.

Together with 140929429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140929421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70464713 + 70464714.

It is an arithmetic number, because the mean of its divisors is an integer number (70464714).

Almost surely, 2^140929427 is an apocalyptic number.

140929427 is a deficient number, since it is larger than the sum of its proper divisors (1).

140929427 is an equidigital number, since it uses as much as digits as its factorization.

140929427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 140929427 is about 11871.3700557265. The cubic root of 140929427 is about 520.3959348933.

The spelling of 140929427 in words is "one hundred forty million, nine hundred twenty-nine thousand, four hundred twenty-seven".