125054545 has 32 divisors (see below), whose sum is σ = 191102976. Its totient is φ = 76286400.

The previous prime is 125054539. The next prime is 125054557. The reversal of 125054545 is 545450521.

It is not a de Polignac number, because 125054545 - 2³ = 125054537 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14640 + ... + 21550.

It is an arithmetic number, because the mean of its divisors is an integer number (5971968).

Almost surely, 2^125054545 is an apocalyptic number.

It is an amenable number.

125054545 is a deficient number, since it is larger than the sum of its proper divisors (66048431).

125054545 is a wasteful number, since it uses less digits than its factorization.

125054545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981.

The product of its (nonzero) digits is 20000, while the sum is 31.

The square root of 125054545 is about 11182.7789480075. The cubic root of 125054545 is about 500.0727160909.

The spelling of 125054545 in words is "one hundred twenty-five million, fifty-four thousand, five hundred forty-five".