1245609434 has 8 divisors (see below), whose sum is σ = 1869709728. Its totient is φ = 622372860.

The previous prime is 1245609427. The next prime is 1245609437. The reversal of 1245609434 is 4349065421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1245609437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212312 + ... + 218099.

It is an arithmetic number, because the mean of its divisors is an integer number (233713716).

Almost surely, 2^1245609434 is an apocalyptic number.

1245609434 is a deficient number, since it is larger than the sum of its proper divisors (624100294).

1245609434 is a wasteful number, since it uses less digits than its factorization.

1245609434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431860.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 1245609434 is about 35293.1924597365. The cubic root of 1245609434 is about 1075.9546404366.

The spelling of 1245609434 in words is "one billion, two hundred forty-five million, six hundred nine thousand, four hundred thirty-four".