2245647149 has 4 divisors (see below), whose sum is σ = 2245806300. Its totient is φ = 2245488000.

The previous prime is 2245647137. The next prime is 2245647233. The reversal of 2245647149 is 9417465422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 254881225 + 1990765924 = 15965^2 + 44618^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245647149 - 2⁴ = 2245647133 is a prime.

It is a super-2 number, since 2×2245647149² = 10085862235623656402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2245647109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56102 + ... + 87399.

It is an arithmetic number, because the mean of its divisors is an integer number (561451575).

Almost surely, 2^2245647149 is an apocalyptic number.

It is an amenable number.

2245647149 is a deficient number, since it is larger than the sum of its proper divisors (159151).

2245647149 is a wasteful number, since it uses less digits than its factorization.

2245647149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159150.

The product of its digits is 483840, while the sum is 44.

The square root of 2245647149 is about 47388.2596114270. The cubic root of 2245647149 is about 1309.5251370185.

The spelling of 2245647149 in words is "two billion, two hundred forty-five million, six hundred forty-seven thousand, one hundred forty-nine".