125720340 has 48 divisors (see below), whose sum is σ = 370547520. Its totient is φ = 31760640.

The previous prime is 125720333. The next prime is 125720351. The reversal of 125720340 is 43027521.

It is a self number, because there is not a number n which added to its sum of digits gives 125720340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54001 + ... + 56280.

It is an arithmetic number, because the mean of its divisors is an integer number (7719740).

Almost surely, 2^125720340 is an apocalyptic number.

125720340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125720340 is an abundant number, since it is smaller than the sum of its proper divisors (244827180).

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

125720340 is a wasteful number, since it uses less digits than its factorization.

125720340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110312 (or 110310 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 125720340 is about 11212.5081939769. The cubic root of 125720340 is about 500.9586142761.

Adding to 125720340 its reverse (43027521), we get a palindrome (168747861).

The spelling of 125720340 in words is "one hundred twenty-five million, seven hundred twenty thousand, three hundred forty".