125120147 has 4 divisors (see below), whose sum is σ = 125249976. Its totient is φ = 124990320.

The previous prime is 125120137. The next prime is 125120167. The reversal of 125120147 is 741021521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 741021521 = 23 ⋅32218327.

It is a cyclic number.

It is not a de Polignac number, because 125120147 - 2⁴ = 125120131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125120137) 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, 63458 + ... + 65399.

It is an arithmetic number, because the mean of its divisors is an integer number (31312494).

Almost surely, 2^125120147 is an apocalyptic number.

125120147 is a deficient number, since it is larger than the sum of its proper divisors (129829).

125120147 is an equidigital number, since it uses as much as digits as its factorization.

125120147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129828.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 125120147 is about 11185.7117341723. The cubic root of 125120147 is about 500.1601447019.

Adding to 125120147 its reverse (741021521), we get a palindrome (866141668).

The spelling of 125120147 in words is "one hundred twenty-five million, one hundred twenty thousand, one hundred forty-seven".