125780753 has 4 divisors (see below), whose sum is σ = 143749440. Its totient is φ = 107812068.

The previous prime is 125780749. The next prime is 125780777. The reversal of 125780753 is 357087521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 357087521 = 7 ⋅51012503.

It is not a de Polignac number, because 125780753 - 2² = 125780749 is a prime.

It is a super-3 number, since 3×125780753³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125780783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8984333 + ... + 8984346.

It is an arithmetic number, because the mean of its divisors is an integer number (35937360).

Almost surely, 2^125780753 is an apocalyptic number.

It is an amenable number.

125780753 is a deficient number, since it is larger than the sum of its proper divisors (17968687).

125780753 is an equidigital number, since it uses as much as digits as its factorization.

125780753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17968686.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 125780753 is about 11215.2018706754. The cubic root of 125780753 is about 501.0388441110.

The spelling of 125780753 in words is "one hundred twenty-five million, seven hundred eighty thousand, seven hundred fifty-three".