1481551456 has 120 divisors (see below), whose sum is σ = 3714193224. Its totient is φ = 576898560.

The previous prime is 1481551451. The next prime is 1481551493. The reversal of 1481551456 is 6541551841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1481551451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 844276 + ... + 846028.

Almost surely, 2^1481551456 is an apocalyptic number.

1481551456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1481551456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1857096612).

1481551456 is an abundant number, since it is smaller than the sum of its proper divisors (2232641768).

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

1481551456 is an equidigital number, since it uses as much as digits as its factorization.

1481551456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1773 counting only the distinct ones).

The product of its digits is 96000, while the sum is 40.

The square root of 1481551456 is about 38490.9269309015. The cubic root of 1481551456 is about 1140.0019123801.

The spelling of 1481551456 in words is "one billion, four hundred eighty-one million, five hundred fifty-one thousand, four hundred fifty-six".