45271547 has 4 divisors (see below), whose sum is σ = 47654280. Its totient is φ = 42888816.

The previous prime is 45271537. The next prime is 45271553. The reversal of 45271547 is 74517254.

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

It is a cyclic number.

It is not a de Polignac number, because 45271547 - 2¹² = 45267451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45271537) 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, 1191338 + ... + 1191375.

It is an arithmetic number, because the mean of its divisors is an integer number (11913570).

Almost surely, 2^45271547 is an apocalyptic number.

45271547 is a deficient number, since it is larger than the sum of its proper divisors (2382733).

45271547 is a wasteful number, since it uses less digits than its factorization.

45271547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382732.

The product of its digits is 39200, while the sum is 35.

The square root of 45271547 is about 6728.4134088208. The cubic root of 45271547 is about 356.4033507436.

The spelling of 45271547 in words is "forty-five million, two hundred seventy-one thousand, five hundred forty-seven".