126641525 has 6 divisors (see below), whose sum is σ = 157035522. Its totient is φ = 101313200.

The previous prime is 126641423. The next prime is 126641531. The reversal of 126641525 is 525146621.

It can be written as a sum of positive squares in 3 ways, for example, as 1067089 + 125574436 = 1033^2 + 11206^2 .

It is not a de Polignac number, because 126641525 - 2¹⁶ = 126575989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126641491 and 126641500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2532806 + ... + 2532855.

It is an arithmetic number, because the mean of its divisors is an integer number (26172587).

Almost surely, 2^126641525 is an apocalyptic number.

It is an amenable number.

126641525 is a deficient number, since it is larger than the sum of its proper divisors (30393997).

126641525 is an equidigital number, since it uses as much as digits as its factorization.

126641525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065671 (or 5065666 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 126641525 is about 11253.5116741398. The cubic root of 126641525 is about 502.1791884769.

The spelling of 126641525 in words is "one hundred twenty-six million, six hundred forty-one thousand, five hundred twenty-five".