1294512949 has 2 divisors, whose sum is σ = 1294512950. Its totient is φ = 1294512948.

The previous prime is 1294512941. The next prime is 1294512983. The reversal of 1294512949 is 9492154921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1270922500 + 23590449 = 35650^2 + 4857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1294512949 - 2³ = 1294512941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1294512899 and 1294512908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1294512941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647256474 + 647256475.

It is an arithmetic number, because the mean of its divisors is an integer number (647256475).

Almost surely, 2^1294512949 is an apocalyptic number.

It is an amenable number.

1294512949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1294512949 is an equidigital number, since it uses as much as digits as its factorization.

1294512949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 1294512949 is about 35979.3405859529. The cubic root of 1294512949 is about 1089.8551974970.

The spelling of 1294512949 in words is "one billion, two hundred ninety-four million, five hundred twelve thousand, nine hundred forty-nine".