1525837 has 2 divisors, whose sum is σ = 1525838. Its totient is φ = 1525836.

The previous prime is 1525831. The next prime is 1525859. The reversal of 1525837 is 7385251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1313316 + 212521 = 1146^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1525837 - 2⁷ = 1525709 is a prime.

It is equal to p₁₁₅₉₉₆ and since 1525837 and 115996 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 1525799 and 1525808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1525831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 762918 + 762919.

It is an arithmetic number, because the mean of its divisors is an integer number (762919).

2^1525837 is an apocalyptic number.

It is an amenable number.

1525837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1525837 is an equidigital number, since it uses as much as digits as its factorization.

1525837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 1525837 is about 1235.2477484294. The cubic root of 1525837 is about 115.1249303951.

It can be divided in two parts, 15 and 25837, that added together give a palindrome (25852).

The spelling of 1525837 in words is "one million, five hundred twenty-five thousand, eight hundred thirty-seven".