213152506 has 16 divisors (see below), whose sum is σ = 367827840. Its totient is φ = 90745200.

The previous prime is 213152503. The next prime is 213152509. The reversal of 213152506 is 605251312.

It is an interprime number because it is at equal distance from previous prime (213152503) and next prime (213152509).

It is not an unprimeable number, because it can be changed into a prime (213152501) 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, 48301 + ... + 52528.

It is an arithmetic number, because the mean of its divisors is an integer number (22989240).

Almost surely, 2^213152506 is an apocalyptic number.

213152506 is a deficient number, since it is larger than the sum of its proper divisors (154675334).

213152506 is a wasteful number, since it uses less digits than its factorization.

213152506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100989.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 213152506 is about 14599.7433539087. The cubic root of 213152506 is about 597.3517600536.

The spelling of 213152506 in words is "two hundred thirteen million, one hundred fifty-two thousand, five hundred six".