1225413445 has 16 divisors (see below), whose sum is σ = 1496154240. Its totient is φ = 963259200.

The previous prime is 1225413439. The next prime is 1225413461. The reversal of 1225413445 is 5443145221.

It is not a de Polignac number, because 1225413445 - 2³ = 1225413437 is a prime.

It is a super-2 number, since 2×1225413445² = 3003276222373536050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459526 + ... + 462184.

It is an arithmetic number, because the mean of its divisors is an integer number (93509640).

Almost surely, 2^1225413445 is an apocalyptic number.

It is an amenable number.

1225413445 is a deficient number, since it is larger than the sum of its proper divisors (270740795).

1225413445 is a wasteful number, since it uses less digits than its factorization.

1225413445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4236.

The product of its digits is 19200, while the sum is 31.

The square root of 1225413445 is about 35005.9058588690. The cubic root of 1225413445 is about 1070.1078428003.

Adding to 1225413445 its reverse (5443145221), we get a palindrome (6668558666).

The spelling of 1225413445 in words is "one billion, two hundred twenty-five million, four hundred thirteen thousand, four hundred forty-five".