1226735321 has 8 divisors (see below), whose sum is σ = 1402223424. Its totient is φ = 1051307280.

The previous prime is 1226735309. The next prime is 1226735329. The reversal of 1226735321 is 1235376221.

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

It is a cyclic number.

It is not a de Polignac number, because 1226735321 - 2³⁰ = 152993497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226735329) 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, 44486 + ... + 66576.

It is an arithmetic number, because the mean of its divisors is an integer number (175277928).

Almost surely, 2^1226735321 is an apocalyptic number.

It is an amenable number.

1226735321 is a deficient number, since it is larger than the sum of its proper divisors (175488103).

1226735321 is an equidigital number, since it uses as much as digits as its factorization.

1226735321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30031.

The product of its digits is 15120, while the sum is 32.

The square root of 1226735321 is about 35024.7815267990. The cubic root of 1226735321 is about 1070.4924861905.

The spelling of 1226735321 in words is "one billion, two hundred twenty-six million, seven hundred thirty-five thousand, three hundred twenty-one".