1145529 has 64 divisors (see below), whose sum is σ = 2304000. Its totient is φ = 544320.

The previous prime is 1145509. The next prime is 1145533. The reversal of 1145529 is 9255411.

It is not a de Polignac number, because 1145529 - 2⁵ = 1145497 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (1800) is a multiple of the sum of its prime factors (75).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39487 + ... + 39515.

It is an arithmetic number, because the mean of its divisors is an integer number (36000).

2^1145529 is an apocalyptic number.

1145529 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1145529 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1145529 is a wasteful number, since it uses less digits than its factorization.

1145529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75 (or 69 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 1145529 is about 1070.2938848746. The cubic root of 1145529 is about 104.6330044877.

It can be divided in two parts, 1 and 145529, that added together give a triangular number (145530 = T₅₃₉).

The spelling of 1145529 in words is "one million, one hundred forty-five thousand, five hundred twenty-nine".