1552641 has 4 divisors (see below), whose sum is σ = 2070192. Its totient is φ = 1035092.

The previous prime is 1552619. The next prime is 1552643. The reversal of 1552641 is 1462551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1552641 - 2⁷ = 1552513 is a prime.

It is a D-number.

It is a Curzon number.

1552641 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1552643) 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, 258771 + ... + 258776.

It is an arithmetic number, because the mean of its divisors is an integer number (517548).

2^1552641 is an apocalyptic number.

It is an amenable number.

1552641 is a deficient number, since it is larger than the sum of its proper divisors (517551).

1552641 is an equidigital number, since it uses as much as digits as its factorization.

1552641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517550.

The product of its digits is 1200, while the sum is 24.

The square root of 1552641 is about 1246.0501595040. The cubic root of 1552641 is about 115.7951447817.

Subtracting from 1552641 its product of digits (1200), we obtain a triangular number (1551441 = T₁₇₆₁).

The spelling of 1552641 in words is "one million, five hundred fifty-two thousand, six hundred forty-one".