1554921012 has 24 divisors (see below), whose sum is σ = 3819104800. Its totient is φ = 491027616.

The previous prime is 1554921001. The next prime is 1554921013. The reversal of 1554921012 is 2101294551.

1554921012 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1554921013) 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, 3409687 + ... + 3410142.

Almost surely, 2^1554921012 is an apocalyptic number.

1554921012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1554921012 is an abundant number, since it is smaller than the sum of its proper divisors (2264183788).

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

1554921012 is a wasteful number, since it uses less digits than its factorization.

1554921012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819855 (or 6819853 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1554921012 is about 39432.4867590164. The cubic root of 1554921012 is about 1158.5179775605.

The spelling of 1554921012 in words is "one billion, five hundred fifty-four million, nine hundred twenty-one thousand, twelve".