2150857946 has 8 divisors (see below), whose sum is σ = 3235427604. Its totient is φ = 1072382080.

The previous prime is 2150857937. The next prime is 2150857981. The reversal of 2150857946 is 6497580512.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1945251025 + 205606921 = 44105^2 + 14339^2 .

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

It is a super-3 number, since 3×2150857946³ (a number of 29 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2150857946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1522565 + ... + 1523976.

Almost surely, 2^2150857946 is an apocalyptic number.

2150857946 is a deficient number, since it is larger than the sum of its proper divisors (1084569658).

2150857946 is a wasteful number, since it uses less digits than its factorization.

2150857946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046896.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 2150857946 is about 46377.3430243691. The cubic root of 2150857946 is about 1290.8345352164.

The spelling of 2150857946 in words is "two billion, one hundred fifty million, eight hundred fifty-seven thousand, nine hundred forty-six".