1461255521 has 8 divisors (see below), whose sum is σ = 1628014464. Its totient is φ = 1300149520.

The previous prime is 1461255493. The next prime is 1461255529. The reversal of 1461255521 is 1255521641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1461255521 - 2²² = 1457061217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1461255529) 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 7 ways as a sum of consecutive naturals, for example, 1412690 + ... + 1413723.

It is an arithmetic number, because the mean of its divisors is an integer number (203501808).

Almost surely, 2^1461255521 is an apocalyptic number.

1461255521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1461255521 is a deficient number, since it is larger than the sum of its proper divisors (166758943).

1461255521 is a wasteful number, since it uses less digits than its factorization.

1461255521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826471.

The product of its digits is 12000, while the sum is 32.

The square root of 1461255521 is about 38226.3720617063. The cubic root of 1461255521 is about 1134.7722886023.

The spelling of 1461255521 in words is "one billion, four hundred sixty-one million, two hundred fifty-five thousand, five hundred twenty-one".