285214516 has 6 divisors (see below), whose sum is σ = 499125410. Its totient is φ = 142607256.

The previous prime is 285214499. The next prime is 285214543. The reversal of 285214516 is 615412582.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 213744400 + 71470116 = 14620^2 + 8454^2 .

It is a super-2 number, since 2×285214516² = 162694640274228512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35651811 + ... + 35651818.

Almost surely, 2^285214516 is an apocalyptic number.

It is an amenable number.

285214516 is a deficient number, since it is larger than the sum of its proper divisors (213910894).

285214516 is a wasteful number, since it uses less digits than its factorization.

285214516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71303633 (or 71303631 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 285214516 is about 16888.2952366424. The cubic root of 285214516 is about 658.2495058071.

The spelling of 285214516 in words is "two hundred eighty-five million, two hundred fourteen thousand, five hundred sixteen".