1551072 has 48 divisors (see below), whose sum is σ = 4136832. Its totient is φ = 508800.

The previous prime is 1551049. The next prime is 1551083. The reversal of 1551072 is 2701551.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10197 + ... + 10347.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2^1551072 is an apocalyptic number.

1551072 is a gapful number since it is divisible by the number (12) 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 1551072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2068416).

1551072 is an abundant number, since it is smaller than the sum of its proper divisors (2585760).

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

1551072 is a wasteful number, since it uses less digits than its factorization.

1551072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 1551072 is about 1245.4204109456. The cubic root of 1551072 is about 115.7561265722.

The spelling of 1551072 in words is "one million, five hundred fifty-one thousand, seventy-two".