1225199533 has 2 divisors, whose sum is σ = 1225199534. Its totient is φ = 1225199532.

The previous prime is 1225199519. The next prime is 1225199551. The reversal of 1225199533 is 3359915221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1206381289 + 18818244 = 34733^2 + 4338^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225199533 - 2²⁹ = 688328621 is a prime.

It is a super-2 number, since 2×1225199533² = 3002227791326836178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225199513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612599766 + 612599767.

It is an arithmetic number, because the mean of its divisors is an integer number (612599767).

Almost surely, 2^1225199533 is an apocalyptic number.

It is an amenable number.

1225199533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225199533 is an equidigital number, since it uses as much as digits as its factorization.

1225199533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 40.

The square root of 1225199533 is about 35002.8503553639. The cubic root of 1225199533 is about 1070.0455720538.

The spelling of 1225199533 in words is "one billion, two hundred twenty-five million, one hundred ninety-nine thousand, five hundred thirty-three".