125722464 has 96 divisors (see below), whose sum is σ = 383475456. Its totient is φ = 35320320.

The previous prime is 125722427. The next prime is 125722483. The reversal of 125722464 is 464227521.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×125722464² = 31612275908462592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 39459 + ... + 42525.

It is an arithmetic number, because the mean of its divisors is an integer number (3994536).

Almost surely, 2^125722464 is an apocalyptic number.

125722464 is a gapful number since it is divisible by the number (14) 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 125722464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191737728).

125722464 is an abundant number, since it is smaller than the sum of its proper divisors (257752992).

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

125722464 is a wasteful number, since it uses less digits than its factorization.

125722464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148 (or 3140 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 125722464 is about 11212.6029092267. The cubic root of 125722464 is about 500.9614354322.

Adding to 125722464 its reverse (464227521), we get a palindrome (589949985).

The spelling of 125722464 in words is "one hundred twenty-five million, seven hundred twenty-two thousand, four hundred sixty-four".