245634212 has 6 divisors (see below), whose sum is σ = 429859878. Its totient is φ = 122817104.

The previous prime is 245634211. The next prime is 245634281. The reversal of 245634212 is 212436542.

It can be written as a sum of positive squares in only one way, i.e., 225420196 + 20214016 = 15014^2 + 4496^2 .

It is a super-2 number, since 2×245634212² = 120672332209721888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245634211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30704273 + ... + 30704280.

It is an arithmetic number, because the mean of its divisors is an integer number (71643313).

Almost surely, 2^245634212 is an apocalyptic number.

It is an amenable number.

245634212 is a deficient number, since it is larger than the sum of its proper divisors (184225666).

245634212 is a wasteful number, since it uses less digits than its factorization.

245634212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61408557 (or 61408555 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 245634212 is about 15672.7219078244. The cubic root of 245634212 is about 626.2719372982.

The spelling of 245634212 in words is "two hundred forty-five million, six hundred thirty-four thousand, two hundred twelve".