1651522149 has 32 divisors (see below), whose sum is σ = 2467238400. Its totient is φ = 1091819520.

The previous prime is 1651522141. The next prime is 1651522151. The reversal of 1651522149 is 9412251561.

It is not a de Polignac number, because 1651522149 - 2³ = 1651522141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1651522141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2296612 + ... + 2297330.

It is an arithmetic number, because the mean of its divisors is an integer number (77101200).

Almost surely, 2^1651522149 is an apocalyptic number.

It is an amenable number.

1651522149 is a deficient number, since it is larger than the sum of its proper divisors (815716251).

1651522149 is a wasteful number, since it uses less digits than its factorization.

1651522149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322 (or 1316 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 1651522149 is about 40638.9240630212. The cubic root of 1651522149 is about 1182.0290067349.

The spelling of 1651522149 in words is "one billion, six hundred fifty-one million, five hundred twenty-two thousand, one hundred forty-nine".