125405416 has 32 divisors (see below), whose sum is σ = 244558080. Its totient is φ = 60220800.

The previous prime is 125405411. The next prime is 125405419. The reversal of 125405416 is 614504521.

It is not an unprimeable number, because it can be changed into a prime (125405411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32131 + ... + 35821.

It is an arithmetic number, because the mean of its divisors is an integer number (7642440).

Almost surely, 2^125405416 is an apocalyptic number.

It is an amenable number.

125405416 is a deficient number, since it is larger than the sum of its proper divisors (119152664).

125405416 is a wasteful number, since it uses less digits than its factorization.

125405416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3865 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 125405416 is about 11198.4559649980. The cubic root of 125405416 is about 500.5399713187.

Adding to 125405416 its reverse (614504521), we get a palindrome (739909937).

It can be divided in two parts, 12540 and 5416, that added together give a square (17956 = 134²).

The spelling of 125405416 in words is "one hundred twenty-five million, four hundred five thousand, four hundred sixteen".