1422145209 has 8 divisors (see below), whose sum is σ = 1947442240. Its totient is φ = 922472496.

The previous prime is 1422145187. The next prime is 1422145213. The reversal of 1422145209 is 9025412241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1422145209 - 2¹¹ = 1422143161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1422145009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6405949 + ... + 6406170.

It is an arithmetic number, because the mean of its divisors is an integer number (243430280).

Almost surely, 2^1422145209 is an apocalyptic number.

It is an amenable number.

1422145209 is a deficient number, since it is larger than the sum of its proper divisors (525297031).

1422145209 is a wasteful number, since it uses less digits than its factorization.

1422145209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12812159.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1422145209 is about 37711.3405887407. The cubic root of 1422145209 is about 1124.5565881191.

The spelling of 1422145209 in words is "one billion, four hundred twenty-two million, one hundred forty-five thousand, two hundred nine".