45464521 has 4 divisors (see below), whose sum is σ = 45486612. Its totient is φ = 45442432.

The previous prime is 45464501. The next prime is 45464539. The reversal of 45464521 is 12546454.

It is a happy number.

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 29376400 + 16088121 = 5420^2 + 4011^2 .

It is a cyclic number.

It is not a de Polignac number, because 45464521 - 2¹³ = 45456329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45464501) 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, 7600 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (11371653).

Almost surely, 2^45464521 is an apocalyptic number.

It is an amenable number.

45464521 is a deficient number, since it is larger than the sum of its proper divisors (22091).

45464521 is a wasteful number, since it uses less digits than its factorization.

45464521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22090.

The product of its digits is 19200, while the sum is 31.

The square root of 45464521 is about 6742.7383902981. The cubic root of 45464521 is about 356.9090332559.

The spelling of 45464521 in words is "forty-five million, four hundred sixty-four thousand, five hundred twenty-one".