1290229033 has 2 divisors, whose sum is σ = 1290229034. Its totient is φ = 1290229032.

The previous prime is 1290229019. The next prime is 1290229043. The reversal of 1290229033 is 3309220921.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659616489 + 630612544 = 25683^2 + 25112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1290229033 - 2⁹ = 1290228521 is a prime.

It is a super-2 number, since 2×1290229033² = 3329381915192230178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1290228986 and 1290229004.

It is not a weakly prime, because it can be changed into another prime (1290229043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645114516 + 645114517.

It is an arithmetic number, because the mean of its divisors is an integer number (645114517).

Almost surely, 2^1290229033 is an apocalyptic number.

It is an amenable number.

1290229033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290229033 is an equidigital number, since it uses as much as digits as its factorization.

1290229033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 1290229033 is about 35919.7582536409. The cubic root of 1290229033 is about 1088.6516540333.

Adding to 1290229033 its reverse (3309220921), we get a palindrome (4599449954).

The spelling of 1290229033 in words is "one billion, two hundred ninety million, two hundred twenty-nine thousand, thirty-three".