140497528900 has 27 divisors (see below), whose sum is σ = 304887771741. Its totient is φ = 56197512240.

The previous prime is 140497528841. The next prime is 140497528931. The reversal of 140497528900 is 9825794041.

The square root of 140497528900 is 374830.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 50579110404 + 89918418496 = 224898^2 + 299864^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3729559 + ... + 3767041.

Almost surely, 2^140497528900 is an apocalyptic number.

140497528900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140497528900 is the 374830-th square number.

It is an amenable number.

140497528900 is an abundant number, since it is smaller than the sum of its proper divisors (164390242841).

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

140497528900 is an frugal number, since it uses more digits than its factorization.

140497528900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74980 (or 37490 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 49.

Multiplying 140497528900 by its sum of digits (49), we get a square (6884378916100 = 2623810²).

The spelling of 140497528900 in words is "one hundred forty billion, four hundred ninety-seven million, five hundred twenty-eight thousand, nine hundred".