140542634 has 16 divisors (see below), whose sum is σ = 212424768. Its totient is φ = 69736992.

The previous prime is 140542559. The next prime is 140542651. The reversal of 140542634 is 436245041.

It is a junction number, because it is equal to n+sod(n) for n = 140542597 and 140542606.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216899 + ... + 217545.

It is an arithmetic number, because the mean of its divisors is an integer number (13276548).

Almost surely, 2^140542634 is an apocalyptic number.

140542634 is a deficient number, since it is larger than the sum of its proper divisors (71882134).

140542634 is a wasteful number, since it uses less digits than its factorization.

140542634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 140542634 is about 11855.0678614675. The cubic root of 140542634 is about 519.9194081216.

Adding to 140542634 its reverse (436245041), we get a palindrome (576787675).

The spelling of 140542634 in words is "one hundred forty million, five hundred forty-two thousand, six hundred thirty-four".