1457720003 has 16 divisors (see below), whose sum is σ = 1543691520. Its totient is φ = 1374382464.

The previous prime is 1457719943. The next prime is 1457720009. The reversal of 1457720003 is 3000277541.

It is a cyclic number.

It is not a de Polignac number, because 1457720003 - 2¹⁶ = 1457654467 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1457720009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340625 + ... + 344877.

It is an arithmetic number, because the mean of its divisors is an integer number (96480720).

Almost surely, 2^1457720003 is an apocalyptic number.

1457720003 is a deficient number, since it is larger than the sum of its proper divisors (85971517).

1457720003 is a wasteful number, since it uses less digits than its factorization.

1457720003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 1457720003 is about 38180.0995677067. The cubic root of 1457720003 is about 1133.8563529920.

Adding to 1457720003 its reverse (3000277541), we get a palindrome (4457997544).

The spelling of 1457720003 in words is "one billion, four hundred fifty-seven million, seven hundred twenty thousand, three".