1652426645 has 4 divisors (see below), whose sum is σ = 1982911980. Its totient is φ = 1321941312.

The previous prime is 1652426617. The next prime is 1652426663. The reversal of 1652426645 is 5466242561.

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 563492644 + 1088934001 = 23738^2 + 32999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1652426645 - 2⁸ = 1652426389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165242660 + ... + 165242669.

It is an arithmetic number, because the mean of its divisors is an integer number (495727995).

Almost surely, 2^1652426645 is an apocalyptic number.

It is an amenable number.

1652426645 is a deficient number, since it is larger than the sum of its proper divisors (330485335).

1652426645 is an equidigital number, since it uses as much as digits as its factorization.

1652426645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330485334.

The product of its digits is 345600, while the sum is 41.

The square root of 1652426645 is about 40650.0509839779. The cubic root of 1652426645 is about 1182.2447562660.

The spelling of 1652426645 in words is "one billion, six hundred fifty-two million, four hundred twenty-six thousand, six hundred forty-five".