213541542 has 16 divisors (see below), whose sum is σ = 474536880. Its totient is φ = 71180496.

The previous prime is 213541507. The next prime is 213541543. The reversal of 213541542 is 245145312.

213541542 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213541543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1977183 + ... + 1977290.

It is an arithmetic number, because the mean of its divisors is an integer number (29658555).

Almost surely, 2^213541542 is an apocalyptic number.

213541542 is an abundant number, since it is smaller than the sum of its proper divisors (260995338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213541542 is a wasteful number, since it uses less digits than its factorization.

213541542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954484 (or 3954478 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 213541542 is about 14613.0606650352. The cubic root of 213541542 is about 597.7149586911.

Adding to 213541542 its reverse (245145312), we get a palindrome (458686854).

The spelling of 213541542 in words is "two hundred thirteen million, five hundred forty-one thousand, five hundred forty-two".