2031766145 has 8 divisors (see below), whose sum is σ = 2438372160. Its totient is φ = 1625244400.

The previous prime is 2031766141. The next prime is 2031766147. The reversal of 2031766145 is 5416671302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2031766145 - 2² = 2031766141 is a prime.

It is a super-2 number, since 2×2031766145² = 8256147335936322050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2031766141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61166 + ... + 88344.

It is an arithmetic number, because the mean of its divisors is an integer number (304796520).

Almost surely, 2^2031766145 is an apocalyptic number.

It is an amenable number.

2031766145 is a deficient number, since it is larger than the sum of its proper divisors (406606015).

2031766145 is a wasteful number, since it uses less digits than its factorization.

2031766145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42135.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2031766145 is about 45075.1166942472. The cubic root of 2031766145 is about 1266.5565148519.

The spelling of 2031766145 in words is "two billion, thirty-one million, seven hundred sixty-six thousand, one hundred forty-five".