1421809150 has 24 divisors (see below), whose sum is σ = 2659867704. Its totient is φ = 565432800.

The previous prime is 1421809099. The next prime is 1421809171. The reversal of 1421809150 is 519081241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73536 + ... + 90835.

It is an arithmetic number, because the mean of its divisors is an integer number (110827821).

Almost surely, 2^1421809150 is an apocalyptic number.

1421809150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1421809150 is a deficient number, since it is larger than the sum of its proper divisors (1238058554).

1421809150 is a wasteful number, since it uses less digits than its factorization.

1421809150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164556 (or 164551 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1421809150 is about 37706.8846498885. The cubic root of 1421809150 is about 1124.4680019626.

The spelling of 1421809150 in words is "one billion, four hundred twenty-one million, eight hundred nine thousand, one hundred fifty".