125537077 has 4 divisors (see below), whose sum is σ = 125602060. Its totient is φ = 125472096.

The previous prime is 125537063. The next prime is 125537089. The reversal of 125537077 is 770735521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42107121 + 83429956 = 6489^2 + 9134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125537077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125537977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29502 + ... + 33487.

It is an arithmetic number, because the mean of its divisors is an integer number (31400515).

Almost surely, 2^125537077 is an apocalyptic number.

It is an amenable number.

125537077 is a deficient number, since it is larger than the sum of its proper divisors (64983).

125537077 is an equidigital number, since it uses as much as digits as its factorization.

125537077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64982.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 125537077 is about 11204.3329564950. The cubic root of 125537077 is about 500.7150795017.

The spelling of 125537077 in words is "one hundred twenty-five million, five hundred thirty-seven thousand, seventy-seven".