1497542923 has 2 divisors, whose sum is σ = 1497542924. Its totient is φ = 1497542922.

The previous prime is 1497542899. The next prime is 1497542957. The reversal of 1497542923 is 3292457941.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1497542923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1497542993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 748771461 + 748771462.

It is an arithmetic number, because the mean of its divisors is an integer number (748771462).

Almost surely, 2^1497542923 is an apocalyptic number.

1497542923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1497542923 is an equidigital number, since it uses as much as digits as its factorization.

1497542923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 46.

The square root of 1497542923 is about 38698.0997337079. The cubic root of 1497542923 is about 1144.0888673996.

The spelling of 1497542923 in words is "one billion, four hundred ninety-seven million, five hundred forty-two thousand, nine hundred twenty-three".