151121210 has 8 divisors (see below), whose sum is σ = 272018196. Its totient is φ = 60448480.

The previous prime is 151121189. The next prime is 151121227. The reversal of 151121210 is 12121151.

It can be written as a sum of positive squares in 2 ways, for example, as 144985681 + 6135529 = 12041^2 + 2477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×151121210² = 45675240223728200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7556051 + ... + 7556070.

Almost surely, 2^151121210 is an apocalyptic number.

151121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151121210 is a deficient number, since it is larger than the sum of its proper divisors (120896986).

151121210 is a wasteful number, since it uses less digits than its factorization.

151121210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15112128.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 151121210 is about 12293.1367030551. The cubic root of 151121210 is about 532.6498479881.

Adding to 151121210 its reverse (12121151), we get a palindrome (163242361).

The spelling of 151121210 in words is "one hundred fifty-one million, one hundred twenty-one thousand, two hundred ten".