1421553012 has 36 divisors (see below), whose sum is σ = 3645915168. Its totient is φ = 430773200.

The previous prime is 1421553011. The next prime is 1421553041. The reversal of 1421553012 is 2103551241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421553011) 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 11 ways as a sum of consecutive naturals, for example, 488064 + ... + 490967.

Almost surely, 2^1421553012 is an apocalyptic number.

1421553012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421553012 is an abundant number, since it is smaller than the sum of its proper divisors (2224362156).

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

1421553012 is a wasteful number, since it uses less digits than its factorization.

1421553012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979060 (or 979047 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1421553012 is about 37703.4880614513. The cubic root of 1421553012 is about 1124.4004738459.

The spelling of 1421553012 in words is "one billion, four hundred twenty-one million, five hundred fifty-three thousand, twelve".