125698545 has 24 divisors (see below), whose sum is σ = 249003456. Its totient is φ = 57462048.

The previous prime is 125698501. The next prime is 125698577. The reversal of 125698545 is 545896521.

125698545 is a `hidden beast` number, since 1 + 2 + 569 + 85 + 4 + 5 = 666.

It is not a de Polignac number, because 125698545 - 2¹³ = 125690353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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

It is a self number, because there is not a number n which added to its sum of digits gives 125698545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199207 + ... + 199836.

It is an arithmetic number, because the mean of its divisors is an integer number (10375144).

Almost surely, 2^125698545 is an apocalyptic number.

125698545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125698545 is a deficient number, since it is larger than the sum of its proper divisors (123304911).

125698545 is a wasteful number, since it uses less digits than its factorization.

125698545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399061 (or 399058 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 125698545 is about 11211.5362462064. The cubic root of 125698545 is about 500.9296637128.

The spelling of 125698545 in words is "one hundred twenty-five million, six hundred ninety-eight thousand, five hundred forty-five".