213437492 has 6 divisors (see below), whose sum is σ = 373515618. Its totient is φ = 106718744.

The previous prime is 213437479. The next prime is 213437503. The reversal of 213437492 is 294734312.

It can be written as a sum of positive squares in only one way, i.e., 193043236 + 20394256 = 13894^2 + 4516^2 .

It is a congruent number.

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, 26679683 + ... + 26679690.

It is an arithmetic number, because the mean of its divisors is an integer number (62252603).

Almost surely, 2^213437492 is an apocalyptic number.

It is an amenable number.

213437492 is a deficient number, since it is larger than the sum of its proper divisors (160078126).

213437492 is a wasteful number, since it uses less digits than its factorization.

213437492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53359377 (or 53359375 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 213437492 is about 14609.5000598925. The cubic root of 213437492 is about 597.6178622903.

The spelling of 213437492 in words is "two hundred thirteen million, four hundred thirty-seven thousand, four hundred ninety-two".