140140546 has 48 divisors (see below), whose sum is σ = 264679488. Its totient is φ = 54475200.

The previous prime is 140140543. The next prime is 140140547. The reversal of 140140546 is 645041041.

It is a self number, because there is not a number n which added to its sum of digits gives 140140546.

It is not an unprimeable number, because it can be changed into a prime (140140543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143841 + ... + 144811.

It is an arithmetic number, because the mean of its divisors is an integer number (5514156).

Almost surely, 2^140140546 is an apocalyptic number.

140140546 is a deficient number, since it is larger than the sum of its proper divisors (124538942).

140140546 is a wasteful number, since it uses less digits than its factorization.

140140546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 140140546 is about 11838.0972288624. The cubic root of 140140546 is about 519.4231102332.

Adding to 140140546 its reverse (645041041), we get a palindrome (785181587).

The spelling of 140140546 in words is "one hundred forty million, one hundred forty thousand, five hundred forty-six".