1145310451 has 4 divisors (see below), whose sum is σ = 1212681672. Its totient is φ = 1077939232.

The previous prime is 1145310437. The next prime is 1145310487. The reversal of 1145310451 is 1540135411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1540135411 = 3373 ⋅456607.

It is a cyclic number.

It is not a de Polignac number, because 1145310451 - 2¹¹ = 1145308403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1145310401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33685585 + ... + 33685618.

It is an arithmetic number, because the mean of its divisors is an integer number (303170418).

Almost surely, 2^1145310451 is an apocalyptic number.

1145310451 is a deficient number, since it is larger than the sum of its proper divisors (67371221).

1145310451 is an equidigital number, since it uses as much as digits as its factorization.

1145310451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67371220.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1145310451 is about 33842.4356540719. The cubic root of 1145310451 is about 1046.2634995144.

Adding to 1145310451 its reverse (1540135411), we get a palindrome (2685445862).

It can be divided in two parts, 11453 and 10451, that added together give a square (21904 = 148²).

The spelling of 1145310451 in words is "one billion, one hundred forty-five million, three hundred ten thousand, four hundred fifty-one".