125571030 has 64 divisors (see below), whose sum is σ = 338688000. Its totient is φ = 29563776.

The previous prime is 125571029. The next prime is 125571031. The reversal of 125571030 is 30175521.

It is an interprime number because it is at equal distance from previous prime (125571029) and next prime (125571031).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125571031) 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 31 ways as a sum of consecutive naturals, for example, 1971 + ... + 15969.

It is an arithmetic number, because the mean of its divisors is an integer number (5292000).

Almost surely, 2^125571030 is an apocalyptic number.

125571030 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 125571030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169344000).

125571030 is an abundant number, since it is smaller than the sum of its proper divisors (213116970).

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

125571030 is a wasteful number, since it uses less digits than its factorization.

125571030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14045.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 125571030 is about 11205.8480268117. The cubic root of 125571030 is about 500.7602168881.

The spelling of 125571030 in words is "one hundred twenty-five million, five hundred seventy-one thousand, thirty".