151140440 has 128 divisors (see below), whose sum is σ = 396576000. Its totient is φ = 51264000.

The previous prime is 151140433. The next prime is 151140467. The reversal of 151140440 is 44041151.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 844271 + ... + 844449.

It is an arithmetic number, because the mean of its divisors is an integer number (3098250).

Almost surely, 2^151140440 is an apocalyptic number.

151140440 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 151140440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198288000).

151140440 is an abundant number, since it is smaller than the sum of its proper divisors (245435560).

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

151140440 is a wasteful number, since it uses less digits than its factorization.

151140440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 151140440 is about 12293.9188219217. The cubic root of 151140440 is about 532.6724400565.

Adding to 151140440 its reverse (44041151), we get a palindrome (195181591).

The spelling of 151140440 in words is "one hundred fifty-one million, one hundred forty thousand, four hundred forty".