140120434 has 32 divisors (see below), whose sum is σ = 223179264. Its totient is φ = 65888640.

The previous prime is 140120423. The next prime is 140120441. The reversal of 140120434 is 434021041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375472 + ... + 375844.

It is an arithmetic number, because the mean of its divisors is an integer number (6974352).

Almost surely, 2^140120434 is an apocalyptic number.

140120434 is a deficient number, since it is larger than the sum of its proper divisors (83058830).

140120434 is a wasteful number, since it uses less digits than its factorization.

140120434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140120434 is about 11837.2477375444. The cubic root of 140120434 is about 519.3982610427.

Adding to 140120434 its reverse (434021041), we get a palindrome (574141475).

The spelling of 140120434 in words is "one hundred forty million, one hundred twenty thousand, four hundred thirty-four".