125306077 has 4 divisors (see below), whose sum is σ = 134945020. Its totient is φ = 115667136.

The previous prime is 125306059. The next prime is 125306081. The reversal of 125306077 is 770603521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 770603521 = 197 ⋅3911693.

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 106936281 = 4286^2 + 10341^2 .

It is a de Polignac number, because none of the positive numbers 2^k-125306077 is a prime.

It is a super-2 number, since 2×125306077² = 31403225866259858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125336077) 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, 4819452 + ... + 4819477.

It is an arithmetic number, because the mean of its divisors is an integer number (33736255).

Almost surely, 2^125306077 is an apocalyptic number.

It is an amenable number.

125306077 is a deficient number, since it is larger than the sum of its proper divisors (9638943).

125306077 is an equidigital number, since it uses as much as digits as its factorization.

125306077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9638942.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 125306077 is about 11194.0196980352. The cubic root of 125306077 is about 500.4077700235.

Adding to 125306077 its reverse (770603521), we get a palindrome (895909598).

The spelling of 125306077 in words is "one hundred twenty-five million, three hundred six thousand, seventy-seven".