140404354 has 4 divisors (see below), whose sum is σ = 210606534. Its totient is φ = 70202176.

The previous prime is 140404333. The next prime is 140404361. The reversal of 140404354 is 453404041.

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

It can be written as a sum of positive squares in only one way, i.e., 137428729 + 2975625 = 11723^2 + 1725^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35101087 + ... + 35101090.

Almost surely, 2^140404354 is an apocalyptic number.

140404354 is a deficient number, since it is larger than the sum of its proper divisors (70202180).

140404354 is an equidigital number, since it uses as much as digits as its factorization.

140404354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70202179.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 140404354 is about 11849.2343212547. The cubic root of 140404354 is about 519.7488358058.

Adding to 140404354 its reverse (453404041), we get a palindrome (593808395).

The spelling of 140404354 in words is "one hundred forty million, four hundred four thousand, three hundred fifty-four".