140561534 has 8 divisors (see below), whose sum is σ = 212257800. Its totient is φ = 69808936.

The previous prime is 140561503. The next prime is 140561549. The reversal of 140561534 is 435165041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 140561497 and 140561506.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235544 + ... + 236139.

It is an arithmetic number, because the mean of its divisors is an integer number (26532225).

Almost surely, 2^140561534 is an apocalyptic number.

140561534 is a deficient number, since it is larger than the sum of its proper divisors (71696266).

140561534 is a wasteful number, since it uses less digits than its factorization.

140561534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471834.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 140561534 is about 11855.8649621190. The cubic root of 140561534 is about 519.9427131171.

The spelling of 140561534 in words is "one hundred forty million, five hundred sixty-one thousand, five hundred thirty-four".