125345405 has 8 divisors (see below), whose sum is σ = 154083384. Its totient is φ = 97830400.

The previous prime is 125345399. The next prime is 125345417. The reversal of 125345405 is 504543521.

It can be written as a sum of positive squares in 4 ways, for example, as 10876804 + 114468601 = 3298^2 + 10699^2 .

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

It is not a de Polignac number, because 125345405 - 2⁸ = 125345149 is a prime.

It is a super-2 number, since 2×125345405² = 31422941109228050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 305516 + ... + 305925.

It is an arithmetic number, because the mean of its divisors is an integer number (19260423).

Almost surely, 2^125345405 is an apocalyptic number.

It is an amenable number.

125345405 is a deficient number, since it is larger than the sum of its proper divisors (28737979).

125345405 is an equidigital number, since it uses as much as digits as its factorization.

125345405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611487.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 125345405 is about 11195.7762124830. The cubic root of 125345405 is about 500.4601164558.

Adding to 125345405 its reverse (504543521), we get a palindrome (629888926).

The spelling of 125345405 in words is "one hundred twenty-five million, three hundred forty-five thousand, four hundred five".