212025154 has 12 divisors (see below), whose sum is σ = 349579062. Its totient is φ = 96374960.

The previous prime is 212025127. The next prime is 212025157. The reversal of 212025154 is 451520212.

212025154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 191185929 + 20839225 = 13827^2 + 4565^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (212025157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 437827 + ... + 438310.

Almost surely, 2^212025154 is an apocalyptic number.

212025154 is a deficient number, since it is larger than the sum of its proper divisors (137553908).

212025154 is a wasteful number, since it uses less digits than its factorization.

212025154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876161 (or 876150 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 212025154 is about 14561.0835448465. The cubic root of 212025154 is about 596.2967776341.

Adding to 212025154 its reverse (451520212), we get a palindrome (663545366).

The spelling of 212025154 in words is "two hundred twelve million, twenty-five thousand, one hundred fifty-four".