1226630265 has 32 divisors (see below), whose sum is σ = 2246280960. Its totient is φ = 559920384.

The previous prime is 1226630261. The next prime is 1226630287. The reversal of 1226630265 is 5620366221.

It is not a de Polignac number, because 1226630265 - 2² = 1226630261 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226630261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66207 + ... + 82683.

It is an arithmetic number, because the mean of its divisors is an integer number (70196280).

Almost surely, 2^1226630265 is an apocalyptic number.

1226630265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226630265 is a deficient number, since it is larger than the sum of its proper divisors (1019650695).

1226630265 is a wasteful number, since it uses less digits than its factorization.

1226630265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17201.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1226630265 is about 35023.2817565687. The cubic root of 1226630265 is about 1070.4619267952.

Adding to 1226630265 its reverse (5620366221), we get a palindrome (6846996486).

The spelling of 1226630265 in words is "one billion, two hundred twenty-six million, six hundred thirty thousand, two hundred sixty-five".