47454531 has 8 divisors (see below), whose sum is σ = 66994704. Its totient is φ = 29775360.

The previous prime is 47454487. The next prime is 47454541. The reversal of 47454531 is 13545474.

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

It is not a de Polignac number, because 47454531 - 2¹⁵ = 47421763 is a prime.

It is a super-2 number, since 2×47454531² = 4503865024859922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47454492 and 47454501.

It is not an unprimeable number, because it can be changed into a prime (47454541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 465190 + ... + 465291.

It is an arithmetic number, because the mean of its divisors is an integer number (8374338).

Almost surely, 2^47454531 is an apocalyptic number.

47454531 is a deficient number, since it is larger than the sum of its proper divisors (19540173).

47454531 is a wasteful number, since it uses less digits than its factorization.

47454531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930501.

The product of its digits is 33600, while the sum is 33.

The square root of 47454531 is about 6888.7249182995. The cubic root of 47454531 is about 362.0422277082.

The spelling of 47454531 in words is "forty-seven million, four hundred fifty-four thousand, five hundred thirty-one".