1538151120 has 240 divisors, whose sum is σ = 5844750912. Its totient is φ = 372833280.

The previous prime is 1538151101. The next prime is 1538151127. The reversal of 1538151120 is 211518351.

1538151120 is a `hidden beast` number, since 1 + 53 + 81 + 511 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538151127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210244 + ... + 217436.

Almost surely, 2^1538151120 is an apocalyptic number.

1538151120 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 1538151120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2922375456).

1538151120 is an abundant number, since it is smaller than the sum of its proper divisors (4306599792).

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

1538151120 is a wasteful number, since it uses less digits than its factorization.

1538151120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7232 (or 7214 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 1538151120 is about 39219.2697535280. The cubic root of 1538151120 is about 1154.3380251219.

Adding to 1538151120 its reverse (211518351), we get a palindrome (1749669471).

The spelling of 1538151120 in words is "one billion, five hundred thirty-eight million, one hundred fifty-one thousand, one hundred twenty".