1226157064 has 32 divisors (see below), whose sum is σ = 2513125440. Its totient is φ = 556216000.

The previous prime is 1226157061. The next prime is 1226157073. The reversal of 1226157064 is 4607516221.

It is a super-2 number, since 2×1226157064² = 3006922291194200192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1226157061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30414 + ... + 58114.

It is an arithmetic number, because the mean of its divisors is an integer number (78535170).

Almost surely, 2^1226157064 is an apocalyptic number.

It is an amenable number.

1226157064 is an abundant number, since it is smaller than the sum of its proper divisors (1286968376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226157064 is a wasteful number, since it uses less digits than its factorization.

1226157064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28221 (or 28217 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1226157064 is about 35016.5255843580. The cubic root of 1226157064 is about 1070.3242572736.

The spelling of 1226157064 in words is "one billion, two hundred twenty-six million, one hundred fifty-seven thousand, sixty-four".