1226292855 has 16 divisors (see below), whose sum is σ = 1962680544. Its totient is φ = 653818880.

The previous prime is 1226292829. The next prime is 1226292883. The reversal of 1226292855 is 5582926221.

It is not a de Polignac number, because 1226292855 - 2²² = 1222098551 is a prime.

It is a super-3 number, since 3×1226292855³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45547 + ... + 67283.

It is an arithmetic number, because the mean of its divisors is an integer number (122667534).

Almost surely, 2^1226292855 is an apocalyptic number.

1226292855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1226292855 is a deficient number, since it is larger than the sum of its proper divisors (736387689).

1226292855 is a wasteful number, since it uses less digits than its factorization.

1226292855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25506.

The product of its digits is 172800, while the sum is 42.

The square root of 1226292855 is about 35018.4644866105. The cubic root of 1226292855 is about 1070.3637669037.

The spelling of 1226292855 in words is "one billion, two hundred twenty-six million, two hundred ninety-two thousand, eight hundred fifty-five".