1226236431 has 8 divisors (see below), whose sum is σ = 1868550784. Its totient is φ = 700706520.

The previous prime is 1226236423. The next prime is 1226236441. The reversal of 1226236431 is 1346326221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1226236431 - 2³ = 1226236423 is a prime.

It is a super-2 number, since 2×1226236431² = 3007311569423235522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226236441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29196085 + ... + 29196126.

It is an arithmetic number, because the mean of its divisors is an integer number (233568848).

Almost surely, 2^1226236431 is an apocalyptic number.

1226236431 is a deficient number, since it is larger than the sum of its proper divisors (642314353).

1226236431 is an equidigital number, since it uses as much as digits as its factorization.

1226236431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58392221.

The product of its digits is 10368, while the sum is 30.

The square root of 1226236431 is about 35017.6588452169. The cubic root of 1226236431 is about 1070.3473501804.

The spelling of 1226236431 in words is "one billion, two hundred twenty-six million, two hundred thirty-six thousand, four hundred thirty-one".