1451133161 has 4 divisors (see below), whose sum is σ = 1451284692. Its totient is φ = 1450981632.

The previous prime is 1451133137. The next prime is 1451133179. The reversal of 1451133161 is 1613311541.

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: 1613311541 = 7873 ⋅204917.

It can be written as a sum of positive squares in 2 ways, for example, as 223681936 + 1227451225 = 14956^2 + 35035^2 .

It is a cyclic number.

It is not a de Polignac number, because 1451133161 - 2¹⁸ = 1450871017 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 1451133161.

It is not an unprimeable number, because it can be changed into a prime (1451133191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60356 + ... + 80901.

It is an arithmetic number, because the mean of its divisors is an integer number (362821173).

Almost surely, 2^1451133161 is an apocalyptic number.

It is an amenable number.

1451133161 is a deficient number, since it is larger than the sum of its proper divisors (151531).

1451133161 is a wasteful number, since it uses less digits than its factorization.

1451133161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151530.

The product of its digits is 1080, while the sum is 26.

The square root of 1451133161 is about 38093.7417563568. The cubic root of 1451133161 is about 1132.1459627843.

The spelling of 1451133161 in words is "one billion, four hundred fifty-one million, one hundred thirty-three thousand, one hundred sixty-one".