125001270 has 48 divisors (see below), whose sum is σ = 326300832. Its totient is φ = 33200640.

The previous prime is 125001259. The next prime is 125001271. The reversal of 125001270 is 72100521.

It is a super-2 number, since 2×125001270² = 31250635003225800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125001271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21030 + ... + 26310.

It is an arithmetic number, because the mean of its divisors is an integer number (6797934).

Almost surely, 2^125001270 is an apocalyptic number.

125001270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125001270 is an abundant number, since it is smaller than the sum of its proper divisors (201299562).

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

125001270 is a wasteful number, since it uses less digits than its factorization.

125001270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5557 (or 5554 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 125001270 is about 11180.3966834813. The cubic root of 125001270 is about 500.0016933276.

Adding to 125001270 its reverse (72100521), we get a palindrome (197101791).

The spelling of 125001270 in words is "one hundred twenty-five million, one thousand, two hundred seventy".