212485154 has 16 divisors (see below), whose sum is σ = 374106048. Its totient is φ = 88603632.

The previous prime is 212485153. The next prime is 212485157. The reversal of 212485154 is 451584212.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 212485154.

It is not an unprimeable number, because it can be changed into a prime (212485153) 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, 204584 + ... + 205619.

It is an arithmetic number, because the mean of its divisors is an integer number (23381628).

Almost surely, 2^212485154 is an apocalyptic number.

212485154 is a deficient number, since it is larger than the sum of its proper divisors (161620894).

212485154 is a wasteful number, since it uses less digits than its factorization.

212485154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410249.

The product of its digits is 12800, while the sum is 32.

The square root of 212485154 is about 14576.8705146201. The cubic root of 212485154 is about 596.7276988153.

It can be divided in two parts, 2124 and 85154, that added together give a palindrome (87278).

The spelling of 212485154 in words is "two hundred twelve million, four hundred eighty-five thousand, one hundred fifty-four".