1520232433 has 2 divisors, whose sum is σ = 1520232434. Its totient is φ = 1520232432.

The previous prime is 1520232397. The next prime is 1520232451. The reversal of 1520232433 is 3342320251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1206659169 + 313573264 = 34737^2 + 17708^2 .

It is a cyclic number.

It is not a de Polignac number, because 1520232433 - 2¹³ = 1520224241 is a prime.

It is a super-2 number, since 2×1520232433² = 4622213300690198978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1520232398 and 1520232407.

It is not a weakly prime, because it can be changed into another prime (1520232533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760116216 + 760116217.

It is an arithmetic number, because the mean of its divisors is an integer number (760116217).

Almost surely, 2^1520232433 is an apocalyptic number.

It is an amenable number.

1520232433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1520232433 is an equidigital number, since it uses as much as digits as its factorization.

1520232433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1520232433 is about 38990.1581556167. The cubic root of 1520232433 is about 1149.8380195297.

Adding to 1520232433 its reverse (3342320251), we get a palindrome (4862552684).

The spelling of 1520232433 in words is "one billion, five hundred twenty million, two hundred thirty-two thousand, four hundred thirty-three".