1248473929 has 2 divisors, whose sum is σ = 1248473930. Its totient is φ = 1248473928.

The previous prime is 1248473927. The next prime is 1248473939. The reversal of 1248473929 is 9293748421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1230606400 + 17867529 = 35080^2 + 4227^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248473929 - 2¹ = 1248473927 is a prime.

Together with 1248473927, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1248473921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624236964 + 624236965.

It is an arithmetic number, because the mean of its divisors is an integer number (624236965).

Almost surely, 2^1248473929 is an apocalyptic number.

It is an amenable number.

1248473929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248473929 is an equidigital number, since it uses as much as digits as its factorization.

1248473929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 1248473929 is about 35333.7505651466. The cubic root of 1248473929 is about 1076.7787904565.

The spelling of 1248473929 in words is "one billion, two hundred forty-eight million, four hundred seventy-three thousand, nine hundred twenty-nine".