1421544152 has 32 divisors (see below), whose sum is σ = 3049432320. Its totient is φ = 608580000.

The previous prime is 1421544139. The next prime is 1421544167. The reversal of 1421544152 is 2514451241.

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 7 ways as a sum of consecutive naturals, for example, 41027 + ... + 67277.

It is an arithmetic number, because the mean of its divisors is an integer number (95294760).

Almost surely, 2^1421544152 is an apocalyptic number.

It is an amenable number.

1421544152 is an abundant number, since it is smaller than the sum of its proper divisors (1627888168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421544152 is a wasteful number, since it uses less digits than its factorization.

1421544152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27231 (or 27227 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 1421544152 is about 37703.3705655078. The cubic root of 1421544152 is about 1124.3981378541.

Adding to 1421544152 its reverse (2514451241), we get a palindrome (3935995393).

The spelling of 1421544152 in words is "one billion, four hundred twenty-one million, five hundred forty-four thousand, one hundred fifty-two".