1226026161 has 24 divisors (see below), whose sum is σ = 1866968064. Its totient is φ = 774146880.

The previous prime is 1226026159. The next prime is 1226026163. The reversal of 1226026161 is 1616206221.

It is an interprime number because it is at equal distance from previous prime (1226026159) and next prime (1226026163).

It is not a de Polignac number, because 1226026161 - 2¹ = 1226026159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1226026163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33636 + ... + 59861.

It is an arithmetic number, because the mean of its divisors is an integer number (77790336).

Almost surely, 2^1226026161 is an apocalyptic number.

It is an amenable number.

1226026161 is a deficient number, since it is larger than the sum of its proper divisors (640941903).

1226026161 is a wasteful number, since it uses less digits than its factorization.

1226026161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93581 (or 93578 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1226026161 is about 35014.6563741528. The cubic root of 1226026161 is about 1070.2861670901.

The spelling of 1226026161 in words is "one billion, two hundred twenty-six million, twenty-six thousand, one hundred sixty-one".