1490109 has 4 divisors (see below), whose sum is σ = 1986816. Its totient is φ = 993404.

The previous prime is 1490089. The next prime is 1490117. The reversal of 1490109 is 9010941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9010941 = 3 ⋅3003647.

It is a cyclic number.

It is not a de Polignac number, because 1490109 - 2⁹ = 1489597 is a prime.

It is a D-number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248349 + ... + 248354.

It is an arithmetic number, because the mean of its divisors is an integer number (496704).

2^1490109 is an apocalyptic number.

It is an amenable number.

1490109 is a deficient number, since it is larger than the sum of its proper divisors (496707).

1490109 is an equidigital number, since it uses as much as digits as its factorization.

1490109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496706.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1490109 is about 1220.7002088965. The cubic root of 1490109 is about 114.2192609951.

The spelling of 1490109 in words is "one million, four hundred ninety thousand, one hundred nine".