45012547 has 8 divisors (see below), whose sum is σ = 46286352. Its totient is φ = 43747200.

The previous prime is 45012523. The next prime is 45012581. The reversal of 45012547 is 74521054.

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

It is a cyclic number.

It is not a de Polignac number, because 45012547 - 2¹⁹ = 44488259 is a prime.

It is a super-2 number, since 2×45012547² = 4052258774854418, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45012047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9568 + ... + 13474.

It is an arithmetic number, because the mean of its divisors is an integer number (5785794).

Almost surely, 2^45012547 is an apocalyptic number.

45012547 is a deficient number, since it is larger than the sum of its proper divisors (1273805).

45012547 is a wasteful number, since it uses less digits than its factorization.

45012547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4229.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 45012547 is about 6709.1390654837. The cubic root of 45012547 is about 355.7223854069.

The spelling of 45012547 in words is "forty-five million, twelve thousand, five hundred forty-seven".