125082761 has 4 divisors (see below), whose sum is σ = 126372372. Its totient is φ = 123793152.

The previous prime is 125082739. The next prime is 125082767. The reversal of 125082761 is 167280521.

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 74046025 + 51036736 = 8605^2 + 7144^2 .

It is a cyclic number.

It is not a de Polignac number, because 125082761 - 2¹⁴ = 125066377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125082767) 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, 644660 + ... + 644853.

It is an arithmetic number, because the mean of its divisors is an integer number (31593093).

Almost surely, 2^125082761 is an apocalyptic number.

It is an amenable number.

125082761 is a deficient number, since it is larger than the sum of its proper divisors (1289611).

125082761 is an equidigital number, since it uses as much as digits as its factorization.

125082761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289610.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 125082761 is about 11184.0404595119. The cubic root of 125082761 is about 500.1103236556.

The spelling of 125082761 in words is "one hundred twenty-five million, eighty-two thousand, seven hundred sixty-one".