1552231 has 4 divisors (see below), whose sum is σ = 1578600. Its totient is φ = 1525864.

The previous prime is 1552223. The next prime is 1552237. The reversal of 1552231 is 1322551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322551 = 43 ⋅30757.

It is a cyclic number.

It is not a de Polignac number, because 1552231 - 2³ = 1552223 is a prime.

It is a super-2 number, since 2×1552231² = 4818842154722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1552199 and 1552208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1552237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13096 + ... + 13213.

It is an arithmetic number, because the mean of its divisors is an integer number (394650).

2^1552231 is an apocalyptic number.

1552231 is a deficient number, since it is larger than the sum of its proper divisors (26369).

1552231 is an equidigital number, since it uses as much as digits as its factorization.

1552231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26368.

The product of its digits is 300, while the sum is 19.

The square root of 1552231 is about 1245.8856287798. The cubic root of 1552231 is about 115.7849513567.

Adding to 1552231 its reverse (1322551), we get a palindrome (2874782).

The spelling of 1552231 in words is "one million, five hundred fifty-two thousand, two hundred thirty-one".