1650521041 has 16 divisors (see below), whose sum is σ = 1887462864. Its totient is φ = 1429807104.

The previous prime is 1650521027. The next prime is 1650521069. The reversal of 1650521041 is 1401250561.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 255872016 + 1394649025 = 15996^2 + 37345^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650521041 - 2⁷ = 1650520913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1650520997 and 1650521015.

It is not an unprimeable number, because it can be changed into a prime (1650521011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67435 + ... + 88591.

It is an arithmetic number, because the mean of its divisors is an integer number (117966429).

Almost surely, 2^1650521041 is an apocalyptic number.

It is an amenable number.

1650521041 is a deficient number, since it is larger than the sum of its proper divisors (236941823).

1650521041 is a wasteful number, since it uses less digits than its factorization.

1650521041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21540.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1650521041 is about 40626.6050882916. The cubic root of 1650521041 is about 1181.7901204689.

The spelling of 1650521041 in words is "one billion, six hundred fifty million, five hundred twenty-one thousand, forty-one".