140788427 has 8 divisors (see below), whose sum is σ = 154104720. Its totient is φ = 127827360.

The previous prime is 140788421. The next prime is 140788463. The reversal of 140788427 is 724887041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140788427 - 2⁴ = 140788411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140788421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87977 + ... + 89562.

It is an arithmetic number, because the mean of its divisors is an integer number (19263090).

Almost surely, 2^140788427 is an apocalyptic number.

140788427 is a deficient number, since it is larger than the sum of its proper divisors (13316293).

140788427 is a wasteful number, since it uses less digits than its factorization.

140788427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177613.

The product of its (nonzero) digits is 100352, while the sum is 41.

The square root of 140788427 is about 11865.4299121439. The cubic root of 140788427 is about 520.2223248038. Note that the first 3 decimals are identical.

The spelling of 140788427 in words is "one hundred forty million, seven hundred eighty-eight thousand, four hundred twenty-seven".