140825689 has 3 divisors (see below), whose sum is σ = 140837557. Its totient is φ = 140813822.

The previous prime is 140825651. The next prime is 140825761. The reversal of 140825689 is 986528041.

It is a happy number.

The square root of 140825689 is 11867.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 140825689 - 2¹³ = 140817497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140825609) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5934 + ... + 17800.

Almost surely, 2^140825689 is an apocalyptic number.

140825689 is the 11867-th square number.

140825689 is the 5934-th centered octagonal number.

It is an amenable number.

140825689 is a deficient number, since it is larger than the sum of its proper divisors (11868).

140825689 is an frugal number, since it uses more digits than its factorization.

140825689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23734 (or 11867 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The cubic root of 140825689 is about 520.2682159204.

The spelling of 140825689 in words is "one hundred forty million, eight hundred twenty-five thousand, six hundred eighty-nine".