1225514331 has 12 divisors (see below), whose sum is σ = 1807851552. Its totient is φ = 799626096.

The previous prime is 1225514327. The next prime is 1225514363. The reversal of 1225514331 is 1334155221.

1225514331 is a `hidden beast` number, since 1 + 225 + 5 + 1 + 433 + 1 = 666.

It is not a de Polignac number, because 1225514331 - 2² = 1225514327 is a prime.

It is a super-2 number, since 2×1225514331² = 3003770750972755122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1225514295 and 1225514304.

It is not an unprimeable number, because it can be changed into a prime (1225514131) 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 11 ways as a sum of consecutive naturals, for example, 1448176 + ... + 1449021.

It is an arithmetic number, because the mean of its divisors is an integer number (150654296).

Almost surely, 2^1225514331 is an apocalyptic number.

1225514331 is a deficient number, since it is larger than the sum of its proper divisors (582337221).

1225514331 is a wasteful number, since it uses less digits than its factorization.

1225514331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897250 (or 2897247 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 1225514331 is about 35007.3468146331. The cubic root of 1225514331 is about 1070.1372086544.

Adding to 1225514331 its reverse (1334155221), we get a palindrome (2559669552).

The spelling of 1225514331 in words is "one billion, two hundred twenty-five million, five hundred fourteen thousand, three hundred thirty-one".