125145073 has 2 divisors, whose sum is σ = 125145074. Its totient is φ = 125145072.

The previous prime is 125145071. The next prime is 125145091. The reversal of 125145073 is 370541521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111661489 + 13483584 = 10567^2 + 3672^2 .

It is a cyclic number.

It is not a de Polignac number, because 125145073 - 2¹ = 125145071 is a prime.

It is a super-2 number, since 2×125145073² = 31322578592350658, which contains 22 as substring.

Together with 125145071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125145071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62572536 + 62572537.

It is an arithmetic number, because the mean of its divisors is an integer number (62572537).

Almost surely, 2^125145073 is an apocalyptic number.

It is an amenable number.

125145073 is a deficient number, since it is larger than the sum of its proper divisors (1).

125145073 is an equidigital number, since it uses as much as digits as its factorization.

125145073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 125145073 is about 11186.8258679574. The cubic root of 125145073 is about 500.1933558840.

Adding to 125145073 its reverse (370541521), we get a palindrome (495686594).

The spelling of 125145073 in words is "one hundred twenty-five million, one hundred forty-five thousand, seventy-three".