125213738 has 16 divisors (see below), whose sum is σ = 214167240. Its totient is φ = 54391296.

The previous prime is 125213723. The next prime is 125213749. The reversal of 125213738 is 837312521.

It can be written as a sum of positive squares in 4 ways, for example, as 81956809 + 43256929 = 9053^2 + 6577^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141203 + ... + 142086.

Almost surely, 2^125213738 is an apocalyptic number.

125213738 is a deficient number, since it is larger than the sum of its proper divisors (88953502).

125213738 is a wasteful number, since it uses less digits than its factorization.

125213738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283321.

The product of its digits is 10080, while the sum is 32.

The square root of 125213738 is about 11189.8944588410. The cubic root of 125213738 is about 500.2848217224.

The spelling of 125213738 in words is "one hundred twenty-five million, two hundred thirteen thousand, seven hundred thirty-eight".