1457290189 has 4 divisors (see below), whose sum is σ = 1520650656. Its totient is φ = 1393929724.

The previous prime is 1457290181. The next prime is 1457290193. The reversal of 1457290189 is 9810927541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1457290189 - 2³ = 1457290181 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 (1457290181) 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, 31680199 + ... + 31680244.

It is an arithmetic number, because the mean of its divisors is an integer number (380162664).

Almost surely, 2^1457290189 is an apocalyptic number.

It is an amenable number.

1457290189 is a deficient number, since it is larger than the sum of its proper divisors (63360467).

1457290189 is an equidigital number, since it uses as much as digits as its factorization.

1457290189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63360466.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 1457290189 is about 38174.4703827047. The cubic root of 1457290189 is about 1133.7449014924.

The spelling of 1457290189 in words is "one billion, four hundred fifty-seven million, two hundred ninety thousand, one hundred eighty-nine".