1652345 has 4 divisors (see below), whose sum is σ = 1982820. Its totient is φ = 1321872.

The previous prime is 1652317. The next prime is 1652347. The reversal of 1652345 is 5432561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5432561 = 67 ⋅81083.

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 1301881 = 592^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 1652345 - 2⁸ = 1652089 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1652347) 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, 165230 + ... + 165239.

It is an arithmetic number, because the mean of its divisors is an integer number (495705).

2^1652345 is an apocalyptic number.

It is an amenable number.

1652345 is a deficient number, since it is larger than the sum of its proper divisors (330475).

1652345 is an equidigital number, since it uses as much as digits as its factorization.

1652345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330474.

The product of its digits is 3600, while the sum is 26.

The square root of 1652345 is about 1285.4357237917. The cubic root of 1652345 is about 118.2225284708. Note that the first 3 decimals are identical.

The spelling of 1652345 in words is "one million, six hundred fifty-two thousand, three hundred forty-five".