1457461889 has 4 divisors (see below), whose sum is σ = 1569574356. Its totient is φ = 1345349424.

The previous prime is 1457461879. The next prime is 1457461897. The reversal of 1457461889 is 9881647541.

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

It can be written as a sum of positive squares in 2 ways, for example, as 302481664 + 1154980225 = 17392^2 + 33985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457461889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1457461889.

It is not an unprimeable number, because it can be changed into a prime (1457461849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56056214 + ... + 56056239.

It is an arithmetic number, because the mean of its divisors is an integer number (392393589).

Almost surely, 2^1457461889 is an apocalyptic number.

It is an amenable number.

1457461889 is a deficient number, since it is larger than the sum of its proper divisors (112112467).

1457461889 is a wasteful number, since it uses less digits than its factorization.

1457461889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112112466.

The product of its digits is 1935360, while the sum is 53.

The square root of 1457461889 is about 38176.7192016286. The cubic root of 1457461889 is about 1133.7894262220.

The spelling of 1457461889 in words is "one billion, four hundred fifty-seven million, four hundred sixty-one thousand, eight hundred eighty-nine".