1245247364 has 6 divisors (see below), whose sum is σ = 2179182894. Its totient is φ = 622623680.

The previous prime is 1245247361. The next prime is 1245247373. The reversal of 1245247364 is 4637425421.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1227941764 + 17305600 = 35042^2 + 4160^2 .

It is not an unprimeable number, because it can be changed into a prime (1245247361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155655917 + ... + 155655924.

It is an arithmetic number, because the mean of its divisors is an integer number (363197149).

Almost surely, 2^1245247364 is an apocalyptic number.

It is an amenable number.

1245247364 is a deficient number, since it is larger than the sum of its proper divisors (933935530).

1245247364 is a wasteful number, since it uses less digits than its factorization.

1245247364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311311845 (or 311311843 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 1245247364 is about 35288.0626274665. The cubic root of 1245247364 is about 1075.8503785820.

The spelling of 1245247364 in words is "one billion, two hundred forty-five million, two hundred forty-seven thousand, three hundred sixty-four".