1451143013 has 4 divisors (see below), whose sum is σ = 1451219328. Its totient is φ = 1451066700.

The previous prime is 1451143009. The next prime is 1451143027. The reversal of 1451143013 is 3103411541.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3103411541 = 20681 ⋅150061.

It is a cyclic number.

It is not a de Polignac number, because 1451143013 - 2² = 1451143009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1451143013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451143003) 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, 15788 + ... + 56138.

It is an arithmetic number, because the mean of its divisors is an integer number (362804832).

Almost surely, 2^1451143013 is an apocalyptic number.

It is an amenable number.

1451143013 is a deficient number, since it is larger than the sum of its proper divisors (76315).

1451143013 is an equidigital number, since it uses as much as digits as its factorization.

1451143013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76314.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1451143013 is about 38093.8710687166. The cubic root of 1451143013 is about 1132.1485248916.

Adding to 1451143013 its reverse (3103411541), we get a palindrome (4554554554).

The spelling of 1451143013 in words is "one billion, four hundred fifty-one million, one hundred forty-three thousand, thirteen".