125195011 has 4 divisors (see below), whose sum is σ = 125248032. Its totient is φ = 125141992.

The previous prime is 125194999. The next prime is 125195023. The reversal of 125195011 is 110591521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110591521 = 23 ⋅4808327.

It is an interprime number because it is at equal distance from previous prime (125194999) and next prime (125195023).

It is a cyclic number.

It is not a de Polignac number, because 125195011 - 2¹³ = 125186819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125195051) 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, 22795 + ... + 27748.

It is an arithmetic number, because the mean of its divisors is an integer number (31312008).

Almost surely, 2^125195011 is an apocalyptic number.

125195011 is a deficient number, since it is larger than the sum of its proper divisors (53021).

125195011 is an equidigital number, since it uses as much as digits as its factorization.

125195011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53020.

The product of its (nonzero) digits is 450, while the sum is 25.

The square root of 125195011 is about 11189.0576457537. The cubic root of 125195011 is about 500.2598795685.

The spelling of 125195011 in words is "one hundred twenty-five million, one hundred ninety-five thousand, eleven".