213148276 has 18 divisors (see below), whose sum is σ = 410003090. Its totient is φ = 96885360.

The previous prime is 213148237. The next prime is 213148277. The reversal of 213148276 is 672841312.

It can be written as a sum of positive squares in only one way, i.e., 118592100 + 94556176 = 10890^2 + 9724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213148277) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 219711 + ... + 220678.

Almost surely, 2^213148276 is an apocalyptic number.

It is an amenable number.

213148276 is a deficient number, since it is larger than the sum of its proper divisors (196854814).

213148276 is a wasteful number, since it uses less digits than its factorization.

213148276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440415 (or 440402 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 213148276 is about 14599.5984876297. The cubic root of 213148276 is about 597.3478085563.

Adding to 213148276 its reverse (672841312), we get a palindrome (885989588).

The spelling of 213148276 in words is "two hundred thirteen million, one hundred forty-eight thousand, two hundred seventy-six".