125463791 has 4 divisors (see below), whose sum is σ = 132844032. Its totient is φ = 118083552.

The previous prime is 125463769. The next prime is 125463797. The reversal of 125463791 is 197364521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125463791 - 2¹⁰ = 125462767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125463797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690095 + ... + 3690128.

It is an arithmetic number, because the mean of its divisors is an integer number (33211008).

Almost surely, 2^125463791 is an apocalyptic number.

125463791 is a deficient number, since it is larger than the sum of its proper divisors (7380241).

125463791 is an equidigital number, since it uses as much as digits as its factorization.

125463791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380240.

The product of its digits is 45360, while the sum is 38.

The square root of 125463791 is about 11201.0620478596. The cubic root of 125463791 is about 500.6176247652.

The spelling of 125463791 in words is "one hundred twenty-five million, four hundred sixty-three thousand, seven hundred ninety-one".