1490775229 has 4 divisors (see below), whose sum is σ = 1491575584. Its totient is φ = 1489974876.

The previous prime is 1490775193. The next prime is 1490775257. The reversal of 1490775229 is 9225770941.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1490775229 - 2¹⁷ = 1490644157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1490775269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397377 + ... + 401110.

It is an arithmetic number, because the mean of its divisors is an integer number (372893896).

Almost surely, 2^1490775229 is an apocalyptic number.

It is an amenable number.

1490775229 is a deficient number, since it is larger than the sum of its proper divisors (800355).

1490775229 is an equidigital number, since it uses as much as digits as its factorization.

1490775229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800354.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 1490775229 is about 38610.5585170689. The cubic root of 1490775229 is about 1142.3628096837.

The spelling of 1490775229 in words is "one billion, four hundred ninety million, seven hundred seventy-five thousand, two hundred twenty-nine".