1610523545 has 4 divisors (see below), whose sum is σ = 1932628260. Its totient is φ = 1288418832.

The previous prime is 1610523533. The next prime is 1610523547. The reversal of 1610523545 is 5453250161.

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 750157321 + 860366224 = 27389^2 + 29332^2 .

It is a cyclic number.

It is not a de Polignac number, because 1610523545 - 2⁴ = 1610523529 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1610523547) 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, 161052350 + ... + 161052359.

It is an arithmetic number, because the mean of its divisors is an integer number (483157065).

Almost surely, 2^1610523545 is an apocalyptic number.

It is an amenable number.

1610523545 is a deficient number, since it is larger than the sum of its proper divisors (322104715).

1610523545 is an equidigital number, since it uses as much as digits as its factorization.

1610523545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322104714.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1610523545 is about 40131.3287220844. The cubic root of 1610523545 is about 1172.1657465444.

The spelling of 1610523545 in words is "one billion, six hundred ten million, five hundred twenty-three thousand, five hundred forty-five".