1457728703 has 4 divisors (see below), whose sum is σ = 1507995240. Its totient is φ = 1407462168.

The previous prime is 1457728693. The next prime is 1457728709. The reversal of 1457728703 is 3078277541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1457728703 - 2⁴ = 1457728687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457728709) 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 in 3 ways as a sum of consecutive naturals, for example, 25133225 + ... + 25133282.

It is an arithmetic number, because the mean of its divisors is an integer number (376998810).

Almost surely, 2^1457728703 is an apocalyptic number.

1457728703 is a deficient number, since it is larger than the sum of its proper divisors (50266537).

1457728703 is an equidigital number, since it uses as much as digits as its factorization.

1457728703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50266536.

The product of its (nonzero) digits is 329280, while the sum is 44.

The square root of 1457728703 is about 38180.2135012365. The cubic root of 1457728703 is about 1133.8586086905.

The spelling of 1457728703 in words is "one billion, four hundred fifty-seven million, seven hundred twenty-eight thousand, seven hundred three".