1145727 has 24 divisors (see below), whose sum is σ = 1842048. Its totient is φ = 680400.

The previous prime is 1145723. The next prime is 1145741. The reversal of 1145727 is 7275411.

It is not a de Polignac number, because 1145727 - 2² = 1145723 is a prime.

It is an Ulam number.

1145727 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6948 + ... + 7110.

It is an arithmetic number, because the mean of its divisors is an integer number (76752).

2^1145727 is an apocalyptic number.

1145727 is a deficient number, since it is larger than the sum of its proper divisors (696321).

1145727 is a wasteful number, since it uses less digits than its factorization.

1145727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 248 counting only the distinct ones).

The product of its digits is 1960, while the sum is 27.

The square root of 1145727 is about 1070.3863788371. The cubic root of 1145727 is about 104.6390326026.

The spelling of 1145727 in words is "one million, one hundred forty-five thousand, seven hundred twenty-seven".