47436545 has 16 divisors (see below), whose sum is σ = 64910160. Its totient is φ = 32968704.

The previous prime is 47436533. The next prime is 47436551. The reversal of 47436545 is 54563474.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 10942864 + 36493681 = 3308^2 + 6041^2 .

It is a cyclic number.

It is not a de Polignac number, because 47436545 - 2¹⁴ = 47420161 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 47436499 and 47436508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20360 + ... + 22569.

It is an arithmetic number, because the mean of its divisors is an integer number (4056885).

Almost surely, 2^47436545 is an apocalyptic number.

It is an amenable number.

47436545 is a deficient number, since it is larger than the sum of its proper divisors (17473615).

47436545 is a wasteful number, since it uses less digits than its factorization.

47436545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42964.

The product of its digits is 201600, while the sum is 38.

The square root of 47436545 is about 6887.4193280212. The cubic root of 47436545 is about 361.9964820634.

The spelling of 47436545 in words is "forty-seven million, four hundred thirty-six thousand, five hundred forty-five".