125650811 has 8 divisors (see below), whose sum is σ = 147617904. Its totient is φ = 105441120.

The previous prime is 125650753. The next prime is 125650829. The reversal of 125650811 is 118056521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125650811 - 2¹⁴ = 125634427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125650831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439196 + ... + 439481.

It is an arithmetic number, because the mean of its divisors is an integer number (18452238).

Almost surely, 2^125650811 is an apocalyptic number.

125650811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

125650811 is a deficient number, since it is larger than the sum of its proper divisors (21967093).

125650811 is a wasteful number, since it uses less digits than its factorization.

125650811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878701.

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 125650811 is about 11209.4072546232. The cubic root of 125650811 is about 500.8662463678.

The spelling of 125650811 in words is "one hundred twenty-five million, six hundred fifty thousand, eight hundred eleven".