125620090 has 8 divisors (see below), whose sum is σ = 226116180. Its totient is φ = 50248032.

The previous prime is 125620057. The next prime is 125620093. The reversal of 125620090 is 90026521.

It can be written as a sum of positive squares in 2 ways, for example, as 112508449 + 13111641 = 10607^2 + 3621^2 .

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

It is not an unprimeable number, because it can be changed into a prime (125620093) 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 3 ways as a sum of consecutive naturals, for example, 6280995 + ... + 6281014.

Almost surely, 2^125620090 is an apocalyptic number.

125620090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125620090 is a deficient number, since it is larger than the sum of its proper divisors (100496090).

125620090 is a wasteful number, since it uses less digits than its factorization.

125620090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12562016.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 125620090 is about 11208.0368486189. The cubic root of 125620090 is about 500.8254232697.

The spelling of 125620090 in words is "one hundred twenty-five million, six hundred twenty thousand, ninety".