1552145 has 16 divisors (see below), whose sum is σ = 2166528. Its totient is φ = 1045440.

The previous prime is 1552123. The next prime is 1552147. The reversal of 1552145 is 5412551.

It is a happy number.

It is not a de Polignac number, because 1552145 - 2⁸ = 1551889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1552145.

It is not an unprimeable number, because it can be changed into a prime (1552147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1772 + ... + 2498.

It is an arithmetic number, because the mean of its divisors is an integer number (135408).

2^1552145 is an apocalyptic number.

It is an amenable number.

1552145 is a deficient number, since it is larger than the sum of its proper divisors (614383).

1552145 is an equidigital number, since it uses as much as digits as its factorization.

1552145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800.

The product of its digits is 1000, while the sum is 23.

The square root of 1552145 is about 1245.8511147003. The cubic root of 1552145 is about 115.7828129959.

Adding to 1552145 its reverse (5412551), we get a palindrome (6964696).

The spelling of 1552145 in words is "one million, five hundred fifty-two thousand, one hundred forty-five".