125513366 has 8 divisors (see below), whose sum is σ = 205385544. Its totient is φ = 57051520.

The previous prime is 125513321. The next prime is 125513371. The reversal of 125513366 is 663315521.

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

It is a congruent number.

It is an unprimeable number.

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, 2852555 + ... + 2852598.

It is an arithmetic number, because the mean of its divisors is an integer number (25673193).

Almost surely, 2^125513366 is an apocalyptic number.

125513366 is a deficient number, since it is larger than the sum of its proper divisors (79872178).

125513366 is a wasteful number, since it uses less digits than its factorization.

125513366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5705166.

The product of its digits is 16200, while the sum is 32.

The square root of 125513366 is about 11203.2747890963. The cubic root of 125513366 is about 500.6835530845.

Adding to 125513366 its reverse (663315521), we get a palindrome (788828887).

The spelling of 125513366 in words is "one hundred twenty-five million, five hundred thirteen thousand, three hundred sixty-six".