1649152 has 20 divisors (see below), whose sum is σ = 3296106. Its totient is φ = 824320.

The previous prime is 1649149. The next prime is 1649161. The reversal of 1649152 is 2519461.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 430336 = 1104^2 + 656^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1649152.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099 + ... + 2122.

2^1649152 is an apocalyptic number.

It is an amenable number.

1649152 is a deficient number, since it is larger than the sum of its proper divisors (1646954).

1649152 is an frugal number, since it uses more digits than its factorization.

1649152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239 (or 3223 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 1649152 is about 1284.1931318926. The cubic root of 1649152 is about 118.1463280918.

It can be divided in two parts, 164 and 9152, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 1649152 in words is "one million, six hundred forty-nine thousand, one hundred fifty-two".