140146534 has 16 divisors (see below), whose sum is σ = 230000400. Its totient is φ = 63516960.

The previous prime is 140146519. The next prime is 140146537. The reversal of 140146534 is 435641041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140146537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449 + ... + 16804.

It is an arithmetic number, because the mean of its divisors is an integer number (14375025).

Almost surely, 2^140146534 is an apocalyptic number.

140146534 is a deficient number, since it is larger than the sum of its proper divisors (89853866).

140146534 is a wasteful number, since it uses less digits than its factorization.

140146534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18615.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 140146534 is about 11838.3501384272. The cubic root of 140146534 is about 519.4305081904.

Adding to 140146534 its reverse (435641041), we get a palindrome (575787575).

The spelling of 140146534 in words is "one hundred forty million, one hundred forty-six thousand, five hundred thirty-four".