2149712450 has 54 divisors (see below), whose sum is σ = 4099098969. Its totient is φ = 838771440.

The previous prime is 2149712447. The next prime is 2149712491. The reversal of 2149712450 is 542179412.

It can be written as a sum of positive squares in 2 ways, for example, as 2106718201 + 42994249 = 45899^2 + 6557^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=32785.

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 2149712450.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25900109 + ... + 25900191.

Almost surely, 2^2149712450 is an apocalyptic number.

2149712450 is a deficient number, since it is larger than the sum of its proper divisors (1949386519).

2149712450 is an frugal number, since it uses more digits than its factorization.

2149712450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 2149712450 is about 46364.9916424019. The cubic root of 2149712450 is about 1290.6053385565.

The spelling of 2149712450 in words is "two billion, one hundred forty-nine million, seven hundred twelve thousand, four hundred fifty".