1640153033 has 2 divisors, whose sum is σ = 1640153034. Its totient is φ = 1640153032.

The previous prime is 1640153003. The next prime is 1640153041. The reversal of 1640153033 is 3303510461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 872198089 + 767954944 = 29533^2 + 27712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1640153033 - 2⁸ = 1640152777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1640152993 and 1640153011.

It is not a weakly prime, because it can be changed into another prime (1640153003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820076516 + 820076517.

It is an arithmetic number, because the mean of its divisors is an integer number (820076517).

Almost surely, 2^1640153033 is an apocalyptic number.

It is an amenable number.

1640153033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1640153033 is an equidigital number, since it uses as much as digits as its factorization.

1640153033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1640153033 is about 40498.8028588500. The cubic root of 1640153033 is about 1179.3103872990.

Adding to 1640153033 its reverse (3303510461), we get a palindrome (4943663494).

The spelling of 1640153033 in words is "one billion, six hundred forty million, one hundred fifty-three thousand, thirty-three".