140135349 has 4 divisors (see below), whose sum is σ = 186847136. Its totient is φ = 93423564.

The previous prime is 140135321. The next prime is 140135351. The reversal of 140135349 is 943531041.

140135349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 943531041 = 3 ⋅314510347.

It is not a de Polignac number, because 140135349 - 2¹⁵ = 140102581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140135249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23355889 + ... + 23355894.

It is an arithmetic number, because the mean of its divisors is an integer number (46711784).

Almost surely, 2^140135349 is an apocalyptic number.

It is an amenable number.

140135349 is a deficient number, since it is larger than the sum of its proper divisors (46711787).

140135349 is an equidigital number, since it uses as much as digits as its factorization.

140135349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46711786.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 140135349 is about 11837.8777236462. The cubic root of 140135349 is about 519.4166893570.

The spelling of 140135349 in words is "one hundred forty million, one hundred thirty-five thousand, three hundred forty-nine".