125620545 has 16 divisors (see below), whose sum is σ = 201144960. Its totient is φ = 66946944.

The previous prime is 125620543. The next prime is 125620577. The reversal of 125620545 is 545026521.

It is not a de Polignac number, because 125620545 - 2¹ = 125620543 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125620543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25957 + ... + 30413.

It is an arithmetic number, because the mean of its divisors is an integer number (12571560).

Almost surely, 2^125620545 is an apocalyptic number.

125620545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125620545 is a deficient number, since it is larger than the sum of its proper divisors (75524415).

125620545 is a wasteful number, since it uses less digits than its factorization.

125620545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 125620545 is about 11208.0571465353. The cubic root of 125620545 is about 500.8260279375.

The spelling of 125620545 in words is "one hundred twenty-five million, six hundred twenty thousand, five hundred forty-five".