151121236 has 24 divisors (see below), whose sum is σ = 305073216. Its totient is φ = 64159680.

The previous prime is 151121227. The next prime is 151121239. The reversal of 151121236 is 632121151.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151121239) 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, 22225 + ... + 28216.

It is an arithmetic number, because the mean of its divisors is an integer number (12711384).

Almost surely, 2^151121236 is an apocalyptic number.

It is an amenable number.

151121236 is an abundant number, since it is smaller than the sum of its proper divisors (153951980).

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

151121236 is a wasteful number, since it uses less digits than its factorization.

151121236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50559 (or 50557 counting only the distinct ones).

The product of its digits is 360, while the sum is 22.

The square root of 151121236 is about 12293.1377605557. The cubic root of 151121236 is about 532.6498785351.

Adding to 151121236 its reverse (632121151), we get a palindrome (783242387).

The spelling of 151121236 in words is "one hundred fifty-one million, one hundred twenty-one thousand, two hundred thirty-six".