213151040 has 56 divisors (see below), whose sum is σ = 523963392. Its totient is φ = 82506240.

The previous prime is 213151033. The next prime is 213151067. The reversal of 213151040 is 40151312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 824 + ... + 20663.

Almost surely, 2^213151040 is an apocalyptic number.

213151040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213151040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261981696).

213151040 is an abundant number, since it is smaller than the sum of its proper divisors (310812352).

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

213151040 is a wasteful number, since it uses less digits than its factorization.

213151040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21535 (or 21525 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 213151040 is about 14599.6931474603. The cubic root of 213151040 is about 597.3503905808.

The spelling of 213151040 in words is "two hundred thirteen million, one hundred fifty-one thousand, forty".