125919210 has 64 divisors (see below), whose sum is σ = 316514304. Its totient is φ = 32020800.

The previous prime is 125919133. The next prime is 125919223. The reversal of 125919210 is 12919521.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 65077 + ... + 66983.

It is an arithmetic number, because the mean of its divisors is an integer number (4945536).

Almost surely, 2^125919210 is an apocalyptic number.

125919210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125919210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158257152).

125919210 is an abundant number, since it is smaller than the sum of its proper divisors (190595094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125919210 is a wasteful number, since it uses less digits than its factorization.

125919210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 125919210 is about 11221.3729106558. The cubic root of 125919210 is about 501.2226212909. Note that the first 3 decimals are identical.

The spelling of 125919210 in words is "one hundred twenty-five million, nine hundred nineteen thousand, two hundred ten".