1145447527 has 4 divisors (see below), whose sum is σ = 1309082896. Its totient is φ = 981812160.

The previous prime is 1145447507. The next prime is 1145447617. The reversal of 1145447527 is 7257445411.

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

It is not a de Polignac number, because 1145447527 - 2¹¹ = 1145445479 is a prime.

It is a super-2 number, since 2×1145447527² = 2624100074220831458, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145447527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145447507) 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, 81817674 + ... + 81817687.

It is an arithmetic number, because the mean of its divisors is an integer number (327270724).

Almost surely, 2^1145447527 is an apocalyptic number.

1145447527 is a deficient number, since it is larger than the sum of its proper divisors (163635369).

1145447527 is an equidigital number, since it uses as much as digits as its factorization.

1145447527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163635368.

The product of its digits is 156800, while the sum is 40.

The square root of 1145447527 is about 33844.4608023233. The cubic root of 1145447527 is about 1046.3052383850.

The spelling of 1145447527 in words is "one billion, one hundred forty-five million, four hundred forty-seven thousand, five hundred twenty-seven".