210252519149 has 8 divisors (see below), whose sum is σ = 213711868440. Its totient is φ = 206793576000.

The previous prime is 210252519107. The next prime is 210252519161. The reversal of 210252519149 is 941915252012.

It can be written as a sum of positive squares in 4 ways, for example, as 41389054249 + 168863464900 = 203443^2 + 410930^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210252519149 is a prime.

It is a super-2 number, since 2×210252519149² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210252519049) 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, 1048607 + ... + 1232915.

It is an arithmetic number, because the mean of its divisors is an integer number (26713983555).

Almost surely, 2^210252519149 is an apocalyptic number.

It is an amenable number.

210252519149 is a deficient number, since it is larger than the sum of its proper divisors (3459349291).

210252519149 is a wasteful number, since it uses less digits than its factorization.

210252519149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203071.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 210252519149 in words is "two hundred ten billion, two hundred fifty-two million, five hundred nineteen thousand, one hundred forty-nine".