151135240 has 64 divisors (see below), whose sum is σ = 355201200. Its totient is φ = 57802752.

The previous prime is 151135223. The next prime is 151135241. The reversal of 151135240 is 42531151.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 42016324 + 109118916 = 6482^2 + 10446^2 .

It is not an unprimeable number, because it can be changed into a prime (151135241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130504 + ... + 131656.

Almost surely, 2^151135240 is an apocalyptic number.

151135240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151135240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177600600).

151135240 is an abundant number, since it is smaller than the sum of its proper divisors (204065960).

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

151135240 is a wasteful number, since it uses less digits than its factorization.

151135240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306 (or 1302 counting only the distinct ones).

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

The square root of 151135240 is about 12293.7073334288. The cubic root of 151135240 is about 532.6663311059. Note that the first 3 decimals are identical.

Adding to 151135240 its reverse (42531151), we get a palindrome (193666391).

The spelling of 151135240 in words is "one hundred fifty-one million, one hundred thirty-five thousand, two hundred forty".