3609121457 has 2 divisors, whose sum is σ = 3609121458. Its totient is φ = 3609121456.

The previous prime is 3609121393. The next prime is 3609121489. The reversal of 3609121457 is 7541219063.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3439705201 + 169416256 = 58649^2 + 13016^2 .

It is a cyclic number.

It is not a de Polignac number, because 3609121457 - 2⁶ = 3609121393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3609121457.

It is not a weakly prime, because it can be changed into another prime (3609121157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804560728 + 1804560729.

It is an arithmetic number, because the mean of its divisors is an integer number (1804560729).

Almost surely, 2^3609121457 is an apocalyptic number.

It is an amenable number.

3609121457 is a deficient number, since it is larger than the sum of its proper divisors (1).

3609121457 is an equidigital number, since it uses as much as digits as its factorization.

3609121457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 3609121457 is about 60075.9640538544. The cubic root of 3609121457 is about 1533.9121913319.

The spelling of 3609121457 in words is "three billion, six hundred nine million, one hundred twenty-one thousand, four hundred fifty-seven".