997152043 has 2 divisors, whose sum is σ = 997152044. Its totient is φ = 997152042.

The previous prime is 997152019. The next prime is 997152049. The reversal of 997152043 is 340251799.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997152043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 997151987 and 997152005.

It is not a weakly prime, because it can be changed into another prime (997152049) 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, 498576021 + 498576022.

It is an arithmetic number, because the mean of its divisors is an integer number (498576022).

Almost surely, 2^997152043 is an apocalyptic number.

997152043 is a deficient number, since it is larger than the sum of its proper divisors (1).

997152043 is an equidigital number, since it uses as much as digits as its factorization.

997152043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 997152043 is about 31577.7143409715. The cubic root of 997152043 is about 999.0497783648.

The spelling of 997152043 in words is "nine hundred ninety-seven million, one hundred fifty-two thousand, forty-three".