1551348 has 18 divisors (see below), whose sum is σ = 3921554. Its totient is φ = 517104.

The previous prime is 1551343. The next prime is 1551371. The reversal of 1551348 is 8431551.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 345744 = 1098^2 + 588^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21511 + ... + 21582.

2^1551348 is an apocalyptic number.

1551348 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1551348 is an abundant number, since it is smaller than the sum of its proper divisors (2370206).

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

1551348 is a wasteful number, since it uses less digits than its factorization.

1551348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43103 (or 43098 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1551348 is about 1245.5312119734. The cubic root of 1551348 is about 115.7629921026.

Adding to 1551348 its reverse (8431551), we get a palindrome (9982899).

The spelling of 1551348 in words is "one million, five hundred fifty-one thousand, three hundred forty-eight".