1045402225 has 24 divisors (see below), whose sum is σ = 1502368128. Its totient is φ = 706742400.

The previous prime is 1045402219. The next prime is 1045402229. The reversal of 1045402225 is 5222045401.

It is not a de Polignac number, because 1045402225 - 2¹³ = 1045394033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1045402225.

It is not an unprimeable number, because it can be changed into a prime (1045402229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29644 + ... + 54493.

It is an arithmetic number, because the mean of its divisors is an integer number (62598672).

Almost surely, 2^1045402225 is an apocalyptic number.

It is an amenable number.

1045402225 is a deficient number, since it is larger than the sum of its proper divisors (456965903).

1045402225 is an equidigital number, since it uses as much as digits as its factorization.

1045402225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84225 (or 84220 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1045402225 is about 32332.6804487348. The cubic root of 1045402225 is about 1014.9106427195.

Adding to 1045402225 its reverse (5222045401), we get a palindrome (6267447626).

The spelling of 1045402225 in words is "one billion, forty-five million, four hundred two thousand, two hundred twenty-five".