1419894509 has 4 divisors (see below), whose sum is σ = 1548975840. Its totient is φ = 1290813180.

The previous prime is 1419894503. The next prime is 1419894523. The reversal of 1419894509 is 9054989141.

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 1419894509 - 2¹² = 1419890413 is a prime.

It is a super-2 number, since 2×1419894509² = 4032200833376702162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1419894503) 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, 64540649 + ... + 64540670.

It is an arithmetic number, because the mean of its divisors is an integer number (387243960).

Almost surely, 2^1419894509 is an apocalyptic number.

It is an amenable number.

1419894509 is a deficient number, since it is larger than the sum of its proper divisors (129081331).

1419894509 is a wasteful number, since it uses less digits than its factorization.

1419894509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129081330.

The product of its (nonzero) digits is 466560, while the sum is 50.

The square root of 1419894509 is about 37681.4876166003. The cubic root of 1419894509 is about 1123.9630303756.

The spelling of 1419894509 in words is "one billion, four hundred nineteen million, eight hundred ninety-four thousand, five hundred nine".