140613779 has 8 divisors (see below), whose sum is σ = 145800000. Its totient is φ = 135450112.

The previous prime is 140613773. The next prime is 140613793. The reversal of 140613779 is 977316041.

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 140613779 - 2⁸ = 140613523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140613773) 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, 7622 + ... + 18420.

It is an arithmetic number, because the mean of its divisors is an integer number (18225000).

Almost surely, 2^140613779 is an apocalyptic number.

140613779 is a deficient number, since it is larger than the sum of its proper divisors (5186221).

140613779 is a wasteful number, since it uses less digits than its factorization.

140613779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11277.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 140613779 is about 11858.0680972914. The cubic root of 140613779 is about 520.0071239162.

The spelling of 140613779 in words is "one hundred forty million, six hundred thirteen thousand, seven hundred seventy-nine".