1457405128 has 8 divisors (see below), whose sum is σ = 2732634630. Its totient is φ = 728702560.

The previous prime is 1457405123. The next prime is 1457405129. The reversal of 1457405128 is 8215047541.

It can be written as a sum of positive squares in only one way, i.e., 1443848004 + 13557124 = 37998^2 + 3682^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1457405123) 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 as a sum of consecutive naturals, namely, 91087813 + ... + 91087828.

Almost surely, 2^1457405128 is an apocalyptic number.

It is an amenable number.

1457405128 is a deficient number, since it is larger than the sum of its proper divisors (1275229502).

1457405128 is a wasteful number, since it uses less digits than its factorization.

1457405128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182175647 (or 182175643 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 1457405128 is about 38175.9757963041. The cubic root of 1457405128 is about 1133.7747075165.

The spelling of 1457405128 in words is "one billion, four hundred fifty-seven million, four hundred five thousand, one hundred twenty-eight".