212501434 has 32 divisors (see below), whose sum is σ = 346377600. Its totient is φ = 97433280.

The previous prime is 212501417. The next prime is 212501449. The reversal of 212501434 is 434105212.

212501434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504544 + ... + 504964.

It is an arithmetic number, because the mean of its divisors is an integer number (10824300).

Almost surely, 2^212501434 is an apocalyptic number.

212501434 is a deficient number, since it is larger than the sum of its proper divisors (133876166).

212501434 is a wasteful number, since it uses less digits than its factorization.

212501434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 212501434 is about 14577.4289228245. The cubic root of 212501434 is about 596.7429382782.

Adding to 212501434 its reverse (434105212), we get a palindrome (646606646).

The spelling of 212501434 in words is "two hundred twelve million, five hundred one thousand, four hundred thirty-four".