140394053 has 4 divisors (see below), whose sum is σ = 140592780. Its totient is φ = 140195328.

The previous prime is 140394049. The next prime is 140394077. The reversal of 140394053 is 350493041.

140394053 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.

It can be written as a sum of positive squares in 2 ways, for example, as 68178049 + 72216004 = 8257^2 + 8498^2 .

It is a cyclic number.

It is not a de Polignac number, because 140394053 - 2² = 140394049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140394043) 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, 98300 + ... + 99717.

It is an arithmetic number, because the mean of its divisors is an integer number (35148195).

Almost surely, 2^140394053 is an apocalyptic number.

It is an amenable number.

140394053 is a deficient number, since it is larger than the sum of its proper divisors (198727).

140394053 is an equidigital number, since it uses as much as digits as its factorization.

140394053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198726.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 140394053 is about 11848.7996438458. The cubic root of 140394053 is about 519.7361247477.

The spelling of 140394053 in words is "one hundred forty million, three hundred ninety-four thousand, fifty-three".