213019748 has 6 divisors (see below), whose sum is σ = 372784566. Its totient is φ = 106509872.

The previous prime is 213019727. The next prime is 213019753. The reversal of 213019748 is 847910312.

It can be written as a sum of positive squares in only one way, i.e., 117332224 + 95687524 = 10832^2 + 9782^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26627465 + ... + 26627472.

It is an arithmetic number, because the mean of its divisors is an integer number (62130761).

Almost surely, 2^213019748 is an apocalyptic number.

It is an amenable number.

213019748 is a deficient number, since it is larger than the sum of its proper divisors (159764818).

213019748 is a wasteful number, since it uses less digits than its factorization.

213019748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53254941 (or 53254939 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 213019748 is about 14595.1960589778. The cubic root of 213019748 is about 597.2277178888.

The spelling of 213019748 in words is "two hundred thirteen million, nineteen thousand, seven hundred forty-eight".