45147827 has 4 divisors (see below), whose sum is σ = 47110800. Its totient is φ = 43184856.

The previous prime is 45147821. The next prime is 45147841. The reversal of 45147827 is 72874154.

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 45147827 - 2¹² = 45143731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45147821) 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, 981452 + ... + 981497.

It is an arithmetic number, because the mean of its divisors is an integer number (11777700).

Almost surely, 2^45147827 is an apocalyptic number.

45147827 is a deficient number, since it is larger than the sum of its proper divisors (1962973).

45147827 is a wasteful number, since it uses less digits than its factorization.

45147827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962972.

The product of its digits is 62720, while the sum is 38.

The square root of 45147827 is about 6719.2132724003. The cubic root of 45147827 is about 356.0783898200.

The spelling of 45147827 in words is "forty-five million, one hundred forty-seven thousand, eight hundred twenty-seven".