131033345 has 8 divisors (see below), whose sum is σ = 159134976. Its totient is φ = 103563376.

The previous prime is 131033333. The next prime is 131033363. The reversal of 131033345 is 543330131.

It is a happy number.

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 131033345 - 2¹⁴ = 131016961 is a prime.

It is a super-3 number, since 3×131033345³ (a number of 25 digits) contains 333 as substring.

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 131033345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157457 + ... + 158286.

It is an arithmetic number, because the mean of its divisors is an integer number (19891872).

Almost surely, 2^131033345 is an apocalyptic number.

It is an amenable number.

131033345 is a deficient number, since it is larger than the sum of its proper divisors (28101631).

131033345 is an equidigital number, since it uses as much as digits as its factorization.

131033345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315831.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 131033345 is about 11446.9797326631. The cubic root of 131033345 is about 507.9183960205.

Adding to 131033345 its reverse (543330131), we get a palindrome (674363476).

The spelling of 131033345 in words is "one hundred thirty-one million, thirty-three thousand, three hundred forty-five".