312200145 has 24 divisors (see below), whose sum is σ = 542033856. Its totient is φ = 166233888.

The previous prime is 312200099. The next prime is 312200159. The reversal of 312200145 is 541002213.

It is not a de Polignac number, because 312200145 - 2⁷ = 312200017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23754 + ... + 34476.

It is an arithmetic number, because the mean of its divisors is an integer number (22584744).

Almost surely, 2^312200145 is an apocalyptic number.

It is an amenable number.

312200145 is a deficient number, since it is larger than the sum of its proper divisors (229833711).

312200145 is a wasteful number, since it uses less digits than its factorization.

312200145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381 (or 11378 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 312200145 is about 17669.1863140327. The cubic root of 312200145 is about 678.3872862379.

Adding to 312200145 its reverse (541002213), we get a palindrome (853202358).

The spelling of 312200145 in words is "three hundred twelve million, two hundred thousand, one hundred forty-five".