140898989 has 16 divisors (see below), whose sum is σ = 183306240. Its totient is φ = 105016560.

The previous prime is 140898977. The next prime is 140899013. The reversal of 140898989 is 989898041.

It is not a de Polignac number, because 140898989 - 2⁴ = 140898973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140898929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38009 + ... + 41550.

It is an arithmetic number, because the mean of its divisors is an integer number (11456640).

Almost surely, 2^140898989 is an apocalyptic number.

It is an amenable number.

140898989 is a deficient number, since it is larger than the sum of its proper divisors (42407251).

140898989 is a wasteful number, since it uses less digits than its factorization.

140898989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79600.

The product of its (nonzero) digits is 1492992, while the sum is 56.

The square root of 140898989 is about 11870.0879946191. The cubic root of 140898989 is about 520.3584670809.

The spelling of 140898989 in words is "one hundred forty million, eight hundred ninety-eight thousand, nine hundred eighty-nine".