125199970 has 16 divisors (see below), whose sum is σ = 257554368. Its totient is φ = 42925680.

The previous prime is 125199959. The next prime is 125199973. The reversal of 125199970 is 79991521.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (125199973) 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, 894216 + ... + 894355.

It is an arithmetic number, because the mean of its divisors is an integer number (16097148).

Almost surely, 2^125199970 is an apocalyptic number.

125199970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125199970 is an abundant number, since it is smaller than the sum of its proper divisors (132354398).

125199970 is a wasteful number, since it uses less digits than its factorization.

125199970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788585.

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 125199970 is about 11189.2792439907. The cubic root of 125199970 is about 500.2664846133.

The spelling of 125199970 in words is "one hundred twenty-five million, one hundred ninety-nine thousand, nine hundred seventy".