125741779 has 8 divisors (see below), whose sum is σ = 129745728. Its totient is φ = 121793280.

The previous prime is 125741773. The next prime is 125741783. The reversal of 125741779 is 977147521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125741779 - 2¹⁵ = 125709011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125741773) 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, 9232 + ... + 18349.

It is an arithmetic number, because the mean of its divisors is an integer number (16218216).

Almost surely, 2^125741779 is an apocalyptic number.

125741779 is a deficient number, since it is larger than the sum of its proper divisors (4003949).

125741779 is an equidigital number, since it uses as much as digits as its factorization.

125741779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27725.

The product of its digits is 123480, while the sum is 43.

The square root of 125741779 is about 11213.4641837391. The cubic root of 125741779 is about 500.9870886961.

The spelling of 125741779 in words is "one hundred twenty-five million, seven hundred forty-one thousand, seven hundred seventy-nine".