1225532315 has 32 divisors (see below), whose sum is σ = 1785732480. Its totient is φ = 789433344.

The previous prime is 1225532291. The next prime is 1225532317. The reversal of 1225532315 is 5132355221.

It is not a de Polignac number, because 1225532315 - 2⁸ = 1225532059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1225532317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21239 + ... + 53871.

It is an arithmetic number, because the mean of its divisors is an integer number (55804140).

Almost surely, 2^1225532315 is an apocalyptic number.

1225532315 is a deficient number, since it is larger than the sum of its proper divisors (560200165).

1225532315 is a wasteful number, since it uses less digits than its factorization.

1225532315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32711.

The product of its digits is 9000, while the sum is 29.

The square root of 1225532315 is about 35007.6036740592. The cubic root of 1225532315 is about 1070.1424432602.

Adding to 1225532315 its reverse (5132355221), we get a palindrome (6357887536).

The spelling of 1225532315 in words is "one billion, two hundred twenty-five million, five hundred thirty-two thousand, three hundred fifteen".