125701405 has 4 divisors (see below), whose sum is σ = 150841692. Its totient is φ = 100561120.

The previous prime is 125701393. The next prime is 125701409. The reversal of 125701405 is 504107521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43943641 + 81757764 = 6629^2 + 9042^2 .

It is not a de Polignac number, because 125701405 - 2⁹ = 125700893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125701405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125701409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12570136 + ... + 12570145.

It is an arithmetic number, because the mean of its divisors is an integer number (37710423).

Almost surely, 2^125701405 is an apocalyptic number.

It is an amenable number.

125701405 is a deficient number, since it is larger than the sum of its proper divisors (25140287).

125701405 is an equidigital number, since it uses as much as digits as its factorization.

125701405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25140286.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 125701405 is about 11211.6637926759. The cubic root of 125701405 is about 500.9334628763.

Adding to 125701405 its reverse (504107521), we get a palindrome (629808926).

The spelling of 125701405 in words is "one hundred twenty-five million, seven hundred one thousand, four hundred five".