1145651 has 6 divisors (see below), whose sum is σ = 1240740. Its totient is φ = 1057368.

The previous prime is 1145623. The next prime is 1145659. The reversal of 1145651 is 1565411.

It is a de Polignac number, because none of the positive numbers 2^k-1145651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3221 + ... + 3558.

It is an arithmetic number, because the mean of its divisors is an integer number (206790).

2^1145651 is an apocalyptic number.

1145651 is a deficient number, since it is larger than the sum of its proper divisors (95089).

1145651 is an equidigital number, since it uses as much as digits as its factorization.

1145651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805 (or 6792 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 1145651 is about 1070.3508770492. The cubic root of 1145651 is about 104.6367188629.

The spelling of 1145651 in words is "one million, one hundred forty-five thousand, six hundred fifty-one".