1551125 has 8 divisors (see below), whose sum is σ = 1935960. Its totient is φ = 1240800.

The previous prime is 1551113. The next prime is 1551133. The reversal of 1551125 is 5211551.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 386884 + 1164241 = 622^2 + 1079^2 .

It is not a de Polignac number, because 1551125 - 2¹⁸ = 1288981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1551097 and 1551106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6080 + ... + 6329.

It is an arithmetic number, because the mean of its divisors is an integer number (241995).

2^1551125 is an apocalyptic number.

It is an amenable number.

1551125 is a deficient number, since it is larger than the sum of its proper divisors (384835).

1551125 is an equidigital number, since it uses as much as digits as its factorization.

1551125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12424 (or 12414 counting only the distinct ones).

The product of its digits is 250, while the sum is 20.

The square root of 1551125 is about 1245.4416887193. The cubic root of 1551125 is about 115.7574450162.

Adding to 1551125 its reverse (5211551), we get a palindrome (6762676).

The spelling of 1551125 in words is "one million, five hundred fifty-one thousand, one hundred twenty-five".