151236 has 18 divisors (see below), whose sum is σ = 382382. Its totient is φ = 50400.

The previous prime is 151213. The next prime is 151237. The reversal of 151236 is 632151.

It can be written as a sum of positive squares in only one way, i.e., 93636 + 57600 = 306^2 + 240^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (151237) by changing a digit.

151236 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2065 + ... + 2136.

2¹⁵¹²³⁶ is an apocalyptic number.

It is an amenable number.

151236 is an abundant number, since it is smaller than the sum of its proper divisors (231146).

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

151236 is a wasteful number, since it uses less digits than its factorization.

151236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211 (or 4206 counting only the distinct ones).

The product of its digits is 180, while the sum is 18.

The square root of 151236 is about 388.8907301544. The cubic root of 151236 is about 53.2784678833.

Adding to 151236 its reverse (632151), we get a palindrome (783387).

It can be divided in two parts, 15123 and 6, that added together give a square (15129 = 123²).

The spelling of 151236 in words is "one hundred fifty-one thousand, two hundred thirty-six".