1145787 has 8 divisors (see below), whose sum is σ = 1537536. Its totient is φ = 758952.

The previous prime is 1145773. The next prime is 1145789. The reversal of 1145787 is 7875411.

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

It is not a de Polignac number, because 1145787 - 2⁶ = 1145723 is a prime.

1145787 is a lucky number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1145789) 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, 643 + ... + 1644.

It is an arithmetic number, because the mean of its divisors is an integer number (192192).

2^1145787 is an apocalyptic number.

1145787 is a deficient number, since it is larger than the sum of its proper divisors (391749).

1145787 is a wasteful number, since it uses less digits than its factorization.

1145787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2457.

The product of its digits is 7840, while the sum is 33.

The square root of 1145787 is about 1070.4144057327. The cubic root of 1145787 is about 104.6408591670.

The spelling of 1145787 in words is "one million, one hundred forty-five thousand, seven hundred eighty-seven".