1490057 has 4 divisors (see below), whose sum is σ = 1492500. Its totient is φ = 1487616.

The previous prime is 1490051. The next prime is 1490059. The reversal of 1490057 is 7500941.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7500941 = 7 ⋅1071563.

It can be written as a sum of positive squares in 2 ways, for example, as 687241 + 802816 = 829^2 + 896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1490057 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1490051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569 + ... + 1817.

It is an arithmetic number, because the mean of its divisors is an integer number (373125).

2^1490057 is an apocalyptic number.

It is an amenable number.

1490057 is a deficient number, since it is larger than the sum of its proper divisors (2443).

1490057 is a wasteful number, since it uses less digits than its factorization.

1490057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1490057 is about 1220.6789094598. The cubic root of 1490057 is about 114.2179323517.

Adding to 1490057 its reverse (7500941), we get a palindrome (8990998).

The spelling of 1490057 in words is "one million, four hundred ninety thousand, fifty-seven".