140540664 has 64 divisors (see below), whose sum is σ = 384912000. Its totient is φ = 42408320.

The previous prime is 140540657. The next prime is 140540677. The reversal of 140540664 is 466045041.

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 15 ways as a sum of consecutive naturals, for example, 70027 + ... + 72005.

It is an arithmetic number, because the mean of its divisors is an integer number (6014250).

Almost surely, 2^140540664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140540664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192456000).

140540664 is an abundant number, since it is smaller than the sum of its proper divisors (244371336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140540664 is a wasteful number, since it uses less digits than its factorization.

140540664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 140540664 is about 11854.9847743470. The cubic root of 140540664 is about 519.9169788563.

The spelling of 140540664 in words is "one hundred forty million, five hundred forty thousand, six hundred sixty-four".