1225475345 has 16 divisors (see below), whose sum is σ = 1560487680. Its totient is φ = 920688384.

The previous prime is 1225475333. The next prime is 1225475347. The reversal of 1225475345 is 5435745221.

It is a cyclic number.

It is not a de Polignac number, because 1225475345 - 2³⁰ = 151733521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1225475299 and 1225475308.

It is not an unprimeable number, because it can be changed into a prime (1225475347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23786 + ... + 54924.

It is an arithmetic number, because the mean of its divisors is an integer number (97530480).

Almost surely, 2^1225475345 is an apocalyptic number.

It is an amenable number.

1225475345 is a deficient number, since it is larger than the sum of its proper divisors (335012335).

1225475345 is a wasteful number, since it uses less digits than its factorization.

1225475345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31624.

The product of its digits is 168000, while the sum is 38.

The square root of 1225475345 is about 35006.7899842302. The cubic root of 1225475345 is about 1070.1258608171.

The spelling of 1225475345 in words is "one billion, two hundred twenty-five million, four hundred seventy-five thousand, three hundred forty-five".