It is a tau number, because it is divible by the number of its divisors (40).
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 151440.
It is an unprimeable number.
2151440 is an apocalyptic number.
151440 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 151440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
151440 is a wasteful number, since it uses less digits than its factorization.
151440 is an evil number, because the sum of its binary digits is even.
The square root of 151440 is about 389.1529262385. The cubic root of 151440 is about 53.3024126323.
Adding to 151440 its reverse (44151), we get a palindrome (195591).
The spelling of 151440 in words is "one hundred fifty-one thousand, four hundred forty".