2149252858 has 4 divisors (see below), whose sum is σ = 3223879290. Its totient is φ = 1074626428.

The previous prime is 2149252799. The next prime is 2149252939. The reversal of 2149252858 is 8582529412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1762068529 + 387184329 = 41977^2 + 19677^2 .

It is a super-3 number, since 3×2149252858³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 537313213 + ... + 537313216.

Almost surely, 2^2149252858 is an apocalyptic number.

2149252858 is a deficient number, since it is larger than the sum of its proper divisors (1074626432).

2149252858 is a wasteful number, since it uses less digits than its factorization.

2149252858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074626431.

The product of its digits is 460800, while the sum is 46.

The square root of 2149252858 is about 46360.0351380367. The cubic root of 2149252858 is about 1290.5133581672.

The spelling of 2149252858 in words is "two billion, one hundred forty-nine million, two hundred fifty-two thousand, eight hundred fifty-eight".