140355742 has 4 divisors (see below), whose sum is σ = 210533616. Its totient is φ = 70177870.

The previous prime is 140355707. The next prime is 140355769. The reversal of 140355742 is 247553041.

140355742 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35088934 + ... + 35088937.

It is an arithmetic number, because the mean of its divisors is an integer number (52633404).

Almost surely, 2^140355742 is an apocalyptic number.

140355742 is a deficient number, since it is larger than the sum of its proper divisors (70177874).

140355742 is an equidigital number, since it uses as much as digits as its factorization.

140355742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70177873.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 140355742 is about 11847.1828718898. The cubic root of 140355742 is about 519.6888449148.

The spelling of 140355742 in words is "one hundred forty million, three hundred fifty-five thousand, seven hundred forty-two".