285137045 has 4 divisors (see below), whose sum is σ = 342164460. Its totient is φ = 228109632.

The previous prime is 285136993. The next prime is 285137071. The reversal of 285137045 is 540731582.

It is a happy number.

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 102535876 + 182601169 = 10126^2 + 13513^2 .

It is a cyclic number.

It is not a de Polignac number, because 285137045 - 2¹⁶ = 285071509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 285136996 and 285137014.

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, 28513700 + ... + 28513709.

It is an arithmetic number, because the mean of its divisors is an integer number (85541115).

Almost surely, 2^285137045 is an apocalyptic number.

It is an amenable number.

285137045 is a deficient number, since it is larger than the sum of its proper divisors (57027415).

285137045 is an equidigital number, since it uses as much as digits as its factorization.

285137045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57027414.

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 285137045 is about 16886.0014509060. The cubic root of 285137045 is about 658.1899017050.

The spelling of 285137045 in words is "two hundred eighty-five million, one hundred thirty-seven thousand, forty-five".