47481345 has 12 divisors (see below), whose sum is σ = 82301076. Its totient is φ = 25323360.

The previous prime is 47481341. The next prime is 47481349. The reversal of 47481345 is 54318474.

It is an interprime number because it is at equal distance from previous prime (47481341) and next prime (47481349).

It can be written as a sum of positive squares in 2 ways, for example, as 12446784 + 35034561 = 3528^2 + 5919^2 .

It is not a de Polignac number, because 47481345 - 2² = 47481341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47481341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 527526 + ... + 527615.

It is an arithmetic number, because the mean of its divisors is an integer number (6858423).

Almost surely, 2^47481345 is an apocalyptic number.

47481345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47481345 is a deficient number, since it is larger than the sum of its proper divisors (34819731).

47481345 is a wasteful number, since it uses less digits than its factorization.

47481345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055152 (or 1055149 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 47481345 is about 6890.6708671943. The cubic root of 47481345 is about 362.1104050576.

The spelling of 47481345 in words is "forty-seven million, four hundred eighty-one thousand, three hundred forty-five".