1551241120 has 192 divisors, whose sum is σ = 4343673600. Its totient is φ = 516096000.

The previous prime is 1551241103. The next prime is 1551241121. The reversal of 1551241120 is 211421551.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1551241091 and 1551241100.

It is not an unprimeable number, because it can be changed into a prime (1551241121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3454656 + ... + 3455104.

It is an arithmetic number, because the mean of its divisors is an integer number (22623300).

Almost surely, 2^1551241120 is an apocalyptic number.

1551241120 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 1551241120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2171836800).

1551241120 is an abundant number, since it is smaller than the sum of its proper divisors (2792432480).

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

1551241120 is a wasteful number, since it uses less digits than its factorization.

1551241120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1551241120 is about 39385.7984557886. The cubic root of 1551241120 is about 1157.6033354745.

Adding to 1551241120 its reverse (211421551), we get a palindrome (1762662671).

The spelling of 1551241120 in words is "one billion, five hundred fifty-one million, two hundred forty-one thousand, one hundred twenty".