1145312405 has 8 divisors (see below), whose sum is σ = 1394888352. Its totient is φ = 902574288.

The previous prime is 1145312359. The next prime is 1145312447. The reversal of 1145312405 is 5042135411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145312405 - 2¹⁸ = 1145050261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1709087 + ... + 1709756.

It is an arithmetic number, because the mean of its divisors is an integer number (174361044).

Almost surely, 2^1145312405 is an apocalyptic number.

It is an amenable number.

1145312405 is a deficient number, since it is larger than the sum of its proper divisors (249575947).

1145312405 is an equidigital number, since it uses as much as digits as its factorization.

1145312405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418915.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1145312405 is about 33842.4645231402. The cubic root of 1145312405 is about 1046.2640945198.

Adding to 1145312405 its reverse (5042135411), we get a palindrome (6187447816).

The spelling of 1145312405 in words is "one billion, one hundred forty-five million, three hundred twelve thousand, four hundred five".