43157963 has 2 divisors, whose sum is σ = 43157964. Its totient is φ = 43157962.

The previous prime is 43157929. The next prime is 43157981. The reversal of 43157963 is 36975134.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43157963 - 2⁶ = 43157899 is a prime.

It is not a weakly prime, because it can be changed into another prime (43157923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21578981 + 21578982.

It is an arithmetic number, because the mean of its divisors is an integer number (21578982).

Almost surely, 2^43157963 is an apocalyptic number.

43157963 is a deficient number, since it is larger than the sum of its proper divisors (1).

43157963 is an equidigital number, since it uses as much as digits as its factorization.

43157963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 43157963 is about 6569.4720488027. The cubic root of 43157963 is about 350.7682796740.

The spelling of 43157963 in words is "forty-three million, one hundred fifty-seven thousand, nine hundred sixty-three".