1525473 has 20 divisors (see below), whose sum is σ = 2344980. Its totient is φ = 987552.

The previous prime is 1525471. The next prime is 1525477. The reversal of 1525473 is 3745251.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1306449 + 219024 = 1143^2 + 468^2 .

It is not a de Polignac number, because 1525473 - 2¹ = 1525471 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1525471) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 2743 + ... + 3251.

It is an arithmetic number, because the mean of its divisors is an integer number (117249).

2^1525473 is an apocalyptic number.

It is an amenable number.

1525473 is a deficient number, since it is larger than the sum of its proper divisors (819507).

1525473 is an equidigital number, since it uses as much as digits as its factorization.

1525473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 549 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 1525473 is about 1235.1004007772. The cubic root of 1525473 is about 115.1157750250.

It can be divided in two parts, 152 and 5473, that added together give a square (5625 = 75²).

The spelling of 1525473 in words is "one million, five hundred twenty-five thousand, four hundred seventy-three".