841525 has 12 divisors (see below), whose sum is σ = 1070244. Its totient is φ = 656000.

The previous prime is 841459. The next prime is 841541. The reversal of 841525 is 525148.

841525 = 58² + 59² + ... + 139².

It can be written as a sum of positive squares in 6 ways, for example, as 223729 + 617796 = 473^2 + 786^2 .

It is not a de Polignac number, because 841525 - 2⁷ = 841397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

841525 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 841525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 615 + ... + 1435.

It is an arithmetic number, because the mean of its divisors is an integer number (89187).

2⁸⁴¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

841525 is a deficient number, since it is larger than the sum of its proper divisors (228719).

841525 is a wasteful number, since it uses less digits than its factorization.

841525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 867 counting only the distinct ones).

The product of its digits is 1600, while the sum is 25.

The square root of 841525 is about 917.3467174411. The cubic root of 841525 is about 94.4109441611.

The spelling of 841525 in words is "eight hundred forty-one thousand, five hundred twenty-five".