140749311 has 8 divisors (see below), whose sum is σ = 188714880. Its totient is φ = 93308312.

The previous prime is 140749309. The next prime is 140749327. The reversal of 140749311 is 113947041.

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 140749311 - 2¹ = 140749309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140749361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130515 + ... + 131588.

It is an arithmetic number, because the mean of its divisors is an integer number (23589360).

Almost surely, 2^140749311 is an apocalyptic number.

140749311 is a deficient number, since it is larger than the sum of its proper divisors (47965569).

140749311 is a wasteful number, since it uses less digits than its factorization.

140749311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262285.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 140749311 is about 11863.7814797812. The cubic root of 140749311 is about 520.1741416263.

The spelling of 140749311 in words is "one hundred forty million, seven hundred forty-nine thousand, three hundred eleven".