1551260 has 12 divisors (see below), whose sum is σ = 3257688. Its totient is φ = 620496.

The previous prime is 1551241. The next prime is 1551269. The reversal of 1551260 is 621551.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 77563 = 1551260 / (1 + 5 + 5 + 1 + 2 + 6 + 0).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38762 + ... + 38801.

It is an arithmetic number, because the mean of its divisors is an integer number (271474).

2^1551260 is an apocalyptic number.

1551260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1551260 is an abundant number, since it is smaller than the sum of its proper divisors (1706428).

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

1551260 is a wasteful number, since it uses less digits than its factorization.

1551260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77572 (or 77570 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1551260 is about 1245.4958851799. The cubic root of 1551260 is about 115.7608031813.

The spelling of 1551260 in words is "one million, five hundred fifty-one thousand, two hundred sixty".