1492223709 has 4 divisors (see below), whose sum is σ = 1989631616. Its totient is φ = 994815804.

The previous prime is 1492223701. The next prime is 1492223723. The reversal of 1492223709 is 9073222941.

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 not a de Polignac number, because 1492223709 - 2³ = 1492223701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492223701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248703949 + ... + 248703954.

It is an arithmetic number, because the mean of its divisors is an integer number (497407904).

Almost surely, 2^1492223709 is an apocalyptic number.

It is an amenable number.

1492223709 is a deficient number, since it is larger than the sum of its proper divisors (497407907).

1492223709 is an equidigital number, since it uses as much as digits as its factorization.

1492223709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497407906.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1492223709 is about 38629.3115263526. The cubic root of 1492223709 is about 1142.7326740837.

The spelling of 1492223709 in words is "one billion, four hundred ninety-two million, two hundred twenty-three thousand, seven hundred nine".