2131150345 has 8 divisors (see below), whose sum is σ = 2707814664. Its totient is φ = 1604630784.

The previous prime is 2131150339. The next prime is 2131150349. The reversal of 2131150345 is 5430511312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1181709376 + 949440969 = 34376^2 + 30813^2 .

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 2131150345 - 2⁹ = 2131149833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131150349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12536094 + ... + 12536263.

It is an arithmetic number, because the mean of its divisors is an integer number (338476833).

Almost surely, 2^2131150345 is an apocalyptic number.

It is an amenable number.

2131150345 is a deficient number, since it is larger than the sum of its proper divisors (576664319).

2131150345 is a wasteful number, since it uses less digits than its factorization.

2131150345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25072379.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2131150345 is about 46164.3839447685. The cubic root of 2131150345 is about 1286.8799354378.

Adding to 2131150345 its reverse (5430511312), we get a palindrome (7561661657).

The spelling of 2131150345 in words is "two billion, one hundred thirty-one million, one hundred fifty thousand, three hundred forty-five".