125035421 has 16 divisors (see below), whose sum is σ = 145788288. Its totient is φ = 105019200.

The previous prime is 125035411. The next prime is 125035423. The reversal of 125035421 is 124530521.

It is a cyclic number.

It is not a de Polignac number, because 125035421 - 2¹⁰ = 125034397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125035423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188831 + ... + 189491.

It is an arithmetic number, because the mean of its divisors is an integer number (9111768).

Almost surely, 2^125035421 is an apocalyptic number.

It is an amenable number.

125035421 is a deficient number, since it is larger than the sum of its proper divisors (20752867).

125035421 is an equidigital number, since it uses as much as digits as its factorization.

125035421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 125035421 is about 11181.9238505724. The cubic root of 125035421 is about 500.0472235397.

Adding to 125035421 its reverse (124530521), we get a palindrome (249565942).

The spelling of 125035421 in words is "one hundred twenty-five million, thirty-five thousand, four hundred twenty-one".