151530144 has 24 divisors (see below), whose sum is σ = 397766880. Its totient is φ = 50510016.

The previous prime is 151530107. The next prime is 151530157. The reversal of 151530144 is 441035151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×151530144² = 45922769081321472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789124 + ... + 789315.

It is an arithmetic number, because the mean of its divisors is an integer number (16573620).

Almost surely, 2^151530144 is an apocalyptic number.

It is an amenable number.

151530144 is an abundant number, since it is smaller than the sum of its proper divisors (246236736).

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

151530144 is a wasteful number, since it uses less digits than its factorization.

151530144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578452 (or 1578444 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 151530144 is about 12309.7580804823. The cubic root of 151530144 is about 533.1298654420.

Adding to 151530144 its reverse (441035151), we get a palindrome (592565295).

The spelling of 151530144 in words is "one hundred fifty-one million, five hundred thirty thousand, one hundred forty-four".