213151450 has 72 divisors (see below), whose sum is σ = 424779732. Its totient is φ = 79511040.

The previous prime is 213151417. The next prime is 213151453. The reversal of 213151450 is 54151312.

It is a happy number.

It can be written as a sum of positive squares in 18 ways, for example, as 5013121 + 208138329 = 2239^2 + 14427^2 .

It is not an unprimeable number, because it can be changed into a prime (213151453) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1555782 + ... + 1555918.

Almost surely, 2^213151450 is an apocalyptic number.

213151450 is a deficient number, since it is larger than the sum of its proper divisors (211628282).

213151450 is a wasteful number, since it uses less digits than its factorization.

213151450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 213151450 is about 14599.7071888446. The cubic root of 213151450 is about 597.3507735854.

The spelling of 213151450 in words is "two hundred thirteen million, one hundred fifty-one thousand, four hundred fifty".