1456625189 has 4 divisors (see below), whose sum is σ = 1458520140. Its totient is φ = 1454730240.

The previous prime is 1456625173. The next prime is 1456625243. The reversal of 1456625189 is 9815266541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9815266541 = 107 ⋅91731463.

It can be written as a sum of positive squares in 2 ways, for example, as 717329089 + 739296100 = 26783^2 + 27190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1456625189 - 2⁴ = 1456625173 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 (1456625089) 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, 946322 + ... + 947859.

It is an arithmetic number, because the mean of its divisors is an integer number (364630035).

Almost surely, 2^1456625189 is an apocalyptic number.

It is an amenable number.

1456625189 is a deficient number, since it is larger than the sum of its proper divisors (1894951).

1456625189 is an equidigital number, since it uses as much as digits as its factorization.

1456625189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894950.

The product of its digits is 518400, while the sum is 47.

The square root of 1456625189 is about 38165.7593793180. The cubic root of 1456625189 is about 1133.5724226740.

The spelling of 1456625189 in words is "one billion, four hundred fifty-six million, six hundred twenty-five thousand, one hundred eighty-nine".