1653252043 has 2 divisors, whose sum is σ = 1653252044. Its totient is φ = 1653252042.

The previous prime is 1653251993. The next prime is 1653252049. The reversal of 1653252043 is 3402523561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1653252043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1653251996 and 1653252014.

It is not a weakly prime, because it can be changed into another prime (1653252049) 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, 826626021 + 826626022.

It is an arithmetic number, because the mean of its divisors is an integer number (826626022).

Almost surely, 2^1653252043 is an apocalyptic number.

1653252043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1653252043 is an equidigital number, since it uses as much as digits as its factorization.

1653252043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1653252043 is about 40660.2022006778. The cubic root of 1653252043 is about 1182.4415698489.

The spelling of 1653252043 in words is "one billion, six hundred fifty-three million, two hundred fifty-two thousand, forty-three".