125154646 has 16 divisors (see below), whose sum is σ = 204149376. Its totient is φ = 57303936.

The previous prime is 125154641. The next prime is 125154713. The reversal of 125154646 is 646451521.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125154641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 48486 + ... + 51001.

It is an arithmetic number, because the mean of its divisors is an integer number (12759336).

Almost surely, 2^125154646 is an apocalyptic number.

125154646 is a deficient number, since it is larger than the sum of its proper divisors (78994730).

125154646 is a wasteful number, since it uses less digits than its factorization.

125154646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99543.

The product of its digits is 28800, while the sum is 34.

The square root of 125154646 is about 11187.2537291330. The cubic root of 125154646 is about 500.2061096926.

It can be divided in two parts, 12515 and 4646, that added together give a square (17161 = 131²).

The spelling of 125154646 in words is "one hundred twenty-five million, one hundred fifty-four thousand, six hundred forty-six".