125402465 has 4 divisors (see below), whose sum is σ = 150482964. Its totient is φ = 100321968.

The previous prime is 125402443. The next prime is 125402483. The reversal of 125402465 is 564204521.

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 93683041 + 31719424 = 9679^2 + 5632^2 .

It is a cyclic number.

It is not a de Polignac number, because 125402465 - 2²² = 121208161 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12540242 + ... + 12540251.

It is an arithmetic number, because the mean of its divisors is an integer number (37620741).

Almost surely, 2^125402465 is an apocalyptic number.

It is an amenable number.

125402465 is a deficient number, since it is larger than the sum of its proper divisors (25080499).

125402465 is an equidigital number, since it uses as much as digits as its factorization.

125402465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25080498.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 125402465 is about 11198.3242049871. The cubic root of 125402465 is about 500.5360451059.

Adding to 125402465 its reverse (564204521), we get a palindrome (689606986).

The spelling of 125402465 in words is "one hundred twenty-five million, four hundred two thousand, four hundred sixty-five".