1451373313 has 4 divisors (see below), whose sum is σ = 1563017428. Its totient is φ = 1339729200.

The previous prime is 1451373263. The next prime is 1451373323. The reversal of 1451373313 is 3133731541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3133731541 = 19 ⋅164933239.

It can be written as a sum of positive squares in 2 ways, for example, as 178810384 + 1272562929 = 13372^2 + 35673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1451373313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1451373323) 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, 55822038 + ... + 55822063.

It is an arithmetic number, because the mean of its divisors is an integer number (390754357).

Almost surely, 2^1451373313 is an apocalyptic number.

1451373313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1451373313 is a deficient number, since it is larger than the sum of its proper divisors (111644115).

1451373313 is a wasteful number, since it uses less digits than its factorization.

1451373313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111644114.

The product of its digits is 11340, while the sum is 31.

The square root of 1451373313 is about 38096.8937447661. The cubic root of 1451373313 is about 1132.2084133178.

The spelling of 1451373313 in words is "one billion, four hundred fifty-one million, three hundred seventy-three thousand, three hundred thirteen".