125402321 has 8 divisors (see below), whose sum is σ = 136884000. Its totient is φ = 113934240.

The previous prime is 125402311. The next prime is 125402323. The reversal of 125402321 is 123204521.

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

It is a cyclic number.

It is not a de Polignac number, because 125402321 - 2²⁶ = 58293457 is a prime.

It is a super-2 number, since 2×125402321² = 31451484224374082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125402293 and 125402302.

It is not an unprimeable number, because it can be changed into a prime (125402323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31670 + ... + 35408.

It is an arithmetic number, because the mean of its divisors is an integer number (17110500).

Almost surely, 2^125402321 is an apocalyptic number.

125402321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

125402321 is a deficient number, since it is larger than the sum of its proper divisors (11481679).

125402321 is a wasteful number, since it uses less digits than its factorization.

125402321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 125402321 is about 11198.3177754518. The cubic root of 125402321 is about 500.5358535169.

Adding to 125402321 its reverse (123204521), we get a palindrome (248606842).

The spelling of 125402321 in words is "one hundred twenty-five million, four hundred two thousand, three hundred twenty-one".