1145709307 has 8 divisors (see below), whose sum is σ = 1155409920. Its totient is φ = 1136029800.

The previous prime is 1145709287. The next prime is 1145709319. The reversal of 1145709307 is 7039075411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145709307 is a prime.

It is a super-3 number, since 3×1145709307³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145709007) 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, 115182 + ... + 124732.

It is an arithmetic number, because the mean of its divisors is an integer number (144426240).

Almost surely, 2^1145709307 is an apocalyptic number.

1145709307 is a deficient number, since it is larger than the sum of its proper divisors (9700613).

1145709307 is an equidigital number, since it uses as much as digits as its factorization.

1145709307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10553.

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 1145709307 is about 33848.3279793847. The cubic root of 1145709307 is about 1046.3849396708.

The spelling of 1145709307 in words is "one billion, one hundred forty-five million, seven hundred nine thousand, three hundred seven".