1457873121 has 16 divisors (see below), whose sum is σ = 1997206848. Its totient is φ = 945369600.

The previous prime is 1457873117. The next prime is 1457873143. The reversal of 1457873121 is 1213787541.

It is a happy number.

It is not a de Polignac number, because 1457873121 - 2² = 1457873117 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1457873121.

It is not an unprimeable number, because it can be changed into a prime (1457873191) 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, 23866 + ... + 59036.

It is an arithmetic number, because the mean of its divisors is an integer number (124825428).

Almost surely, 2^1457873121 is an apocalyptic number.

It is an amenable number.

1457873121 is a deficient number, since it is larger than the sum of its proper divisors (539333727).

1457873121 is a wasteful number, since it uses less digits than its factorization.

1457873121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35552.

The product of its digits is 47040, while the sum is 39.

The square root of 1457873121 is about 38182.1047219768. The cubic root of 1457873121 is about 1133.8960514568.

The spelling of 1457873121 in words is "one billion, four hundred fifty-seven million, eight hundred seventy-three thousand, one hundred twenty-one".