212737489 has 2 divisors, whose sum is σ = 212737490. Its totient is φ = 212737488.

The previous prime is 212737477. The next prime is 212737517. The reversal of 212737489 is 984737212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106812225 + 105925264 = 10335^2 + 10292^2 .

It is a cyclic number.

It is not a de Polignac number, because 212737489 - 2²⁵ = 179183057 is a prime.

It is not a weakly prime, because it can be changed into another prime (212737409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106368744 + 106368745.

It is an arithmetic number, because the mean of its divisors is an integer number (106368745).

Almost surely, 2^212737489 is an apocalyptic number.

It is an amenable number.

212737489 is a deficient number, since it is larger than the sum of its proper divisors (1).

212737489 is an equidigital number, since it uses as much as digits as its factorization.

212737489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 212737489 is about 14585.5232679531. The cubic root of 212737489 is about 596.9638183991.

The spelling of 212737489 in words is "two hundred twelve million, seven hundred thirty-seven thousand, four hundred eighty-nine".