125521035 has 8 divisors (see below), whose sum is σ = 200833680. Its totient is φ = 66944544.

The previous prime is 125521003. The next prime is 125521037. The reversal of 125521035 is 530125521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125521035 - 2⁵ = 125521003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125520996 and 125521014.

It is not an unprimeable number, because it can be changed into a prime (125521037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4184020 + ... + 4184049.

It is an arithmetic number, because the mean of its divisors is an integer number (25104210).

Almost surely, 2^125521035 is an apocalyptic number.

125521035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125521035 is a deficient number, since it is larger than the sum of its proper divisors (75312645).

125521035 is an equidigital number, since it uses as much as digits as its factorization.

125521035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368077.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 125521035 is about 11203.6170498639. The cubic root of 125521035 is about 500.6937503092.

Adding to 125521035 its reverse (530125521), we get a palindrome (655646556).

The spelling of 125521035 in words is "one hundred twenty-five million, five hundred twenty-one thousand, thirty-five".