125013719 has 4 divisors (see below), whose sum is σ = 125157144. Its totient is φ = 124870296.

The previous prime is 125013703. The next prime is 125013769. The reversal of 125013719 is 917310521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917310521 = 6317 ⋅145213.

It is a cyclic number.

It is not a de Polignac number, because 125013719 - 2⁴ = 125013703 is a prime.

It is a super-2 number, since 2×125013719² = 31256859876421922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125013691 and 125013700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125013769) 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, 70397 + ... + 72150.

It is an arithmetic number, because the mean of its divisors is an integer number (31289286).

Almost surely, 2^125013719 is an apocalyptic number.

125013719 is a deficient number, since it is larger than the sum of its proper divisors (143425).

125013719 is an equidigital number, since it uses as much as digits as its factorization.

125013719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143424.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 125013719 is about 11180.9534029974. The cubic root of 125013719 is about 500.0182913308.

The spelling of 125013719 in words is "one hundred twenty-five million, thirteen thousand, seven hundred nineteen".