1145737 has 4 divisors (see below), whose sum is σ = 1160320. Its totient is φ = 1131156.

The previous prime is 1145723. The next prime is 1145741. The reversal of 1145737 is 7375411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7173 + ... + 7330.

It is an arithmetic number, because the mean of its divisors is an integer number (290080).

2^1145737 is an apocalyptic number.

It is an amenable number.

1145737 is a deficient number, since it is larger than the sum of its proper divisors (14583).

1145737 is an equidigital number, since it uses as much as digits as its factorization.

1145737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582.

The product of its digits is 2940, while the sum is 28.

The square root of 1145737 is about 1070.3910500373. The cubic root of 1145737 is about 104.6393370345.

It can be divided in two parts, 114573 and 7, that multiplied together give a triangular number (802011 = T₁₂₆₆).

The spelling of 1145737 in words is "one million, one hundred forty-five thousand, seven hundred thirty-seven".