1457530 has 8 divisors (see below), whose sum is σ = 2623572. Its totient is φ = 583008.

The previous prime is 1457513. The next prime is 1457551. The reversal of 1457530 is 357541.

It can be written as a sum of positive squares in 2 ways, for example, as 1442401 + 15129 = 1201^2 + 123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1457495 and 1457504.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72867 + ... + 72886.

2^1457530 is an apocalyptic number.

1457530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1457530 is a deficient number, since it is larger than the sum of its proper divisors (1166042).

1457530 is a wasteful number, since it uses less digits than its factorization.

1457530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145760.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1457530 is about 1207.2820714315. The cubic root of 1457530 is about 113.3807087594.

The spelling of 1457530 in words is "one million, four hundred fifty-seven thousand, five hundred thirty".