1490765 has 4 divisors (see below), whose sum is σ = 1788924. Its totient is φ = 1192608.

The previous prime is 1490743. The next prime is 1490773. The reversal of 1490765 is 5670941.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 885481 + 605284 = 941^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490765 - 2⁶ = 1490701 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149072 + ... + 149081.

It is an arithmetic number, because the mean of its divisors is an integer number (447231).

2^1490765 is an apocalyptic number.

It is an amenable number.

1490765 is a deficient number, since it is larger than the sum of its proper divisors (298159).

1490765 is an equidigital number, since it uses as much as digits as its factorization.

1490765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298158.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 1490765 is about 1220.9688775722. The cubic root of 1490765 is about 114.2360196892.

The spelling of 1490765 in words is "one million, four hundred ninety thousand, seven hundred sixty-five".