1226520435 has 32 divisors (see below), whose sum is σ = 2285107200. Its totient is φ = 550113408.

The previous prime is 1226520431. The next prime is 1226520479. The reversal of 1226520435 is 5340256221.

It is not a de Polignac number, because 1226520435 - 2² = 1226520431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226520431) 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 31 ways as a sum of consecutive naturals, for example, 104635 + ... + 115764.

It is an arithmetic number, because the mean of its divisors is an integer number (71409600).

Almost surely, 2^1226520435 is an apocalyptic number.

1226520435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1226520435 is a deficient number, since it is larger than the sum of its proper divisors (1058586765).

1226520435 is a wasteful number, since it uses less digits than its factorization.

1226520435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220467.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1226520435 is about 35021.7137644633. The cubic root of 1226520435 is about 1070.4299768409.

Adding to 1226520435 its reverse (5340256221), we get a palindrome (6566776656).

The spelling of 1226520435 in words is "one billion, two hundred twenty-six million, five hundred twenty thousand, four hundred thirty-five".