454381481 has 4 divisors (see below), whose sum is σ = 455730132. Its totient is φ = 453032832.

The previous prime is 454381453. The next prime is 454381507. The reversal of 454381481 is 184183454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 194881600 + 259499881 = 13960^2 + 16109^2 .

It is a cyclic number.

It is not a de Polignac number, because 454381481 - 2¹⁴ = 454365097 is a prime.

It is a super-2 number, since 2×454381481² = 412925060551506722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454381451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673820 + ... + 674493.

It is an arithmetic number, because the mean of its divisors is an integer number (113932533).

Almost surely, 2^454381481 is an apocalyptic number.

It is an amenable number.

454381481 is a deficient number, since it is larger than the sum of its proper divisors (1348651).

454381481 is a wasteful number, since it uses less digits than its factorization.

454381481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348650.

The product of its digits is 61440, while the sum is 38.

The square root of 454381481 is about 21316.2257681795. The cubic root of 454381481 is about 768.7884928750.

The spelling of 454381481 in words is "four hundred fifty-four million, three hundred eighty-one thousand, four hundred eighty-one".