1145407 has 4 divisors (see below), whose sum is σ = 1148896. Its totient is φ = 1141920.

The previous prime is 1145393. The next prime is 1145411. The reversal of 1145407 is 7045411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1194 + ... + 1927.

It is an arithmetic number, because the mean of its divisors is an integer number (287224).

2^1145407 is an apocalyptic number.

1145407 is a deficient number, since it is larger than the sum of its proper divisors (3489).

1145407 is an equidigital number, since it uses as much as digits as its factorization.

1145407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1145407 is about 1070.2368896651. The cubic root of 1145407 is about 104.6292898488.

The spelling of 1145407 in words is "one million, one hundred forty-five thousand, four hundred seven".