1457220863 has 8 divisors (see below), whose sum is σ = 1665671328. Its totient is φ = 1248839424.

The previous prime is 1457220847. The next prime is 1457220871. The reversal of 1457220863 is 3680227541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1457220863 - 2⁴ = 1457220847 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 (1457220803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41195 + ... + 67907.

It is an arithmetic number, because the mean of its divisors is an integer number (208208916).

Almost surely, 2^1457220863 is an apocalyptic number.

1457220863 is a deficient number, since it is larger than the sum of its proper divisors (208450465).

1457220863 is an equidigital number, since it uses as much as digits as its factorization.

1457220863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34513.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 1457220863 is about 38173.5623566887. The cubic root of 1457220863 is about 1133.7269230906.

The spelling of 1457220863 in words is "one billion, four hundred fifty-seven million, two hundred twenty thousand, eight hundred sixty-three".