1509244949 has 2 divisors, whose sum is σ = 1509244950. Its totient is φ = 1509244948.

The previous prime is 1509244939. The next prime is 1509244963. The reversal of 1509244949 is 9494429051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1423552900 + 85692049 = 37730^2 + 9257^2 .

It is a cyclic number.

It is not a de Polignac number, because 1509244949 - 2¹² = 1509240853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1509244939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 754622474 + 754622475.

It is an arithmetic number, because the mean of its divisors is an integer number (754622475).

Almost surely, 2^1509244949 is an apocalyptic number.

It is an amenable number.

1509244949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1509244949 is an equidigital number, since it uses as much as digits as its factorization.

1509244949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 1509244949 is about 38849.0019048109. The cubic root of 1509244949 is about 1147.0611663815.

The spelling of 1509244949 in words is "one billion, five hundred nine million, two hundred forty-four thousand, nine hundred forty-nine".