125777740 has 24 divisors (see below), whose sum is σ = 288145872. Its totient is φ = 45737280.

The previous prime is 125777723. The next prime is 125777741. The reversal of 125777740 is 47777521.

It is a junction number, because it is equal to n+sod(n) for n = 125777693 and 125777702.

It is not an unprimeable number, because it can be changed into a prime (125777741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285639 + ... + 286078.

It is an arithmetic number, because the mean of its divisors is an integer number (12006078).

Almost surely, 2^125777740 is an apocalyptic number.

125777740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125777740 is an abundant number, since it is smaller than the sum of its proper divisors (162368132).

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

125777740 is a wasteful number, since it uses less digits than its factorization.

125777740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571737 (or 571735 counting only the distinct ones).

The product of its (nonzero) digits is 96040, while the sum is 40.

The square root of 125777740 is about 11215.0675432652. The cubic root of 125777740 is about 501.0348433874.

The spelling of 125777740 in words is "one hundred twenty-five million, seven hundred seventy-seven thousand, seven hundred forty".