125451320 has 64 divisors (see below), whose sum is σ = 289059840. Its totient is φ = 48988800.

The previous prime is 125451307. The next prime is 125451329. The reversal of 125451320 is 23154521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125451329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462785 + ... + 463055.

It is an arithmetic number, because the mean of its divisors is an integer number (4516560).

Almost surely, 2^125451320 is an apocalyptic number.

125451320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125451320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144529920).

125451320 is an abundant number, since it is smaller than the sum of its proper divisors (163608520).

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

125451320 is a wasteful number, since it uses less digits than its factorization.

125451320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 125451320 is about 11200.5053457422. The cubic root of 125451320 is about 500.6010372190.

The spelling of 125451320 in words is "one hundred twenty-five million, four hundred fifty-one thousand, three hundred twenty".