213110154 has 48 divisors (see below), whose sum is σ = 479157120. Its totient is φ = 68372640.

The previous prime is 213110071. The next prime is 213110159. The reversal of 213110154 is 451011312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (213110159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329059 + ... + 329705.

It is an arithmetic number, because the mean of its divisors is an integer number (9982440).

Almost surely, 2^213110154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213110154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239578560).

213110154 is an abundant number, since it is smaller than the sum of its proper divisors (266046966).

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

213110154 is a wasteful number, since it uses less digits than its factorization.

213110154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 213110154 is about 14598.2928453981. The cubic root of 213110154 is about 597.3121941453.

Adding to 213110154 its reverse (451011312), we get a palindrome (664121466).

The spelling of 213110154 in words is "two hundred thirteen million, one hundred ten thousand, one hundred fifty-four".