1457161645 has 16 divisors (see below), whose sum is σ = 1796598720. Its totient is φ = 1134134784.

The previous prime is 1457161621. The next prime is 1457161649. The reversal of 1457161645 is 5461617541.

It is a cyclic number.

It is not a de Polignac number, because 1457161645 - 2¹⁷ = 1457030573 is a prime.

It is a super-3 number, since 3×1457161645³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1457161598 and 1457161607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457161649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3154 + ... + 54076.

It is an arithmetic number, because the mean of its divisors is an integer number (112287420).

Almost surely, 2^1457161645 is an apocalyptic number.

It is an amenable number.

1457161645 is a deficient number, since it is larger than the sum of its proper divisors (339437075).

1457161645 is an equidigital number, since it uses as much as digits as its factorization.

1457161645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51084.

The product of its digits is 100800, while the sum is 40.

The square root of 1457161645 is about 38172.7867072866. The cubic root of 1457161645 is about 1133.7115655581.

The spelling of 1457161645 in words is "one billion, four hundred fifty-seven million, one hundred sixty-one thousand, six hundred forty-five".