125017071 has 4 divisors (see below), whose sum is σ = 166689432. Its totient is φ = 83344712.

The previous prime is 125017069. The next prime is 125017091. The reversal of 125017071 is 170710521.

It is a happy number.

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 125017071 - 2¹ = 125017069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125017051) 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, 20836176 + ... + 20836181.

It is an arithmetic number, because the mean of its divisors is an integer number (41672358).

Almost surely, 2^125017071 is an apocalyptic number.

125017071 is a deficient number, since it is larger than the sum of its proper divisors (41672361).

125017071 is an equidigital number, since it uses as much as digits as its factorization.

125017071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41672360.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 125017071 is about 11181.1032997643. The cubic root of 125017071 is about 500.0227602973.

Adding to 125017071 its reverse (170710521), we get a palindrome (295727592).

The spelling of 125017071 in words is "one hundred twenty-five million, seventeen thousand, seventy-one".