6140989 has 2 divisors, whose sum is σ = 6140990. Its totient is φ = 6140988.

The previous prime is 6140983. The next prime is 6140999. The reversal of 6140989 is 9890416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6041764 + 99225 = 2458^2 + 315^2 .

It is a cyclic number.

It is not a de Polignac number, because 6140989 - 2⁵ = 6140957 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6140983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3070494 + 3070495.

It is an arithmetic number, because the mean of its divisors is an integer number (3070495).

Almost surely, 2^6140989 is an apocalyptic number.

It is an amenable number.

6140989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6140989 is an equidigital number, since it uses as much as digits as its factorization.

6140989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 6140989 is about 2478.1018945959. The cubic root of 6140989 is about 183.1243543486.

The spelling of 6140989 in words is "six million, one hundred forty thousand, nine hundred eighty-nine".