1970243903 has 2 divisors, whose sum is σ = 1970243904. Its totient is φ = 1970243902.

The previous prime is 1970243861. The next prime is 1970243909. The reversal of 1970243903 is 3093420791.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970243903 is a prime.

It is a super-2 number, since 2×1970243903² = 7763722074617346818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1970243909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985121951 + 985121952.

It is an arithmetic number, because the mean of its divisors is an integer number (985121952).

Almost surely, 2^1970243903 is an apocalyptic number.

1970243903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970243903 is an equidigital number, since it uses as much as digits as its factorization.

1970243903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 1970243903 is about 44387.4295606312. The cubic root of 1970243903 is about 1253.6414144201.

The spelling of 1970243903 in words is "one billion, nine hundred seventy million, two hundred forty-three thousand, nine hundred three".