125849970 has 64 divisors (see below), whose sum is σ = 336752640. Its totient is φ = 33444864.

The previous prime is 125849953. The next prime is 125849989. The reversal of 125849970 is 79948521.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102802 + ... + 104018.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 2^125849970 is an apocalyptic number.

125849970 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 125849970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168376320).

125849970 is an abundant number, since it is smaller than the sum of its proper divisors (210902670).

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

125849970 is a wasteful number, since it uses less digits than its factorization.

125849970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616 (or 1610 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 125849970 is about 11218.2873024361. The cubic root of 125849970 is about 501.1307342857.

The spelling of 125849970 in words is "one hundred twenty-five million, eight hundred forty-nine thousand, nine hundred seventy".