125021775153 has 16 divisors (see below), whose sum is σ = 181866258432. Its totient is φ = 75763938000.

The previous prime is 125021775127. The next prime is 125021775157. The reversal of 125021775153 is 351577120521.

It is a happy number.

It is not a de Polignac number, because 125021775153 - 2⁶ = 125021775089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125021775157) 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 15 ways as a sum of consecutive naturals, for example, 213408 + ... + 543678.

It is an arithmetic number, because the mean of its divisors is an integer number (11366641152).

Almost surely, 2^125021775153 is an apocalyptic number.

It is an amenable number.

125021775153 is a deficient number, since it is larger than the sum of its proper divisors (56844483279).

125021775153 is a wasteful number, since it uses less digits than its factorization.

125021775153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341756.

The product of its (nonzero) digits is 73500, while the sum is 39.

Adding to 125021775153 its reverse (351577120521), we get a palindrome (476598895674).

The spelling of 125021775153 in words is "one hundred twenty-five billion, twenty-one million, seven hundred seventy-five thousand, one hundred fifty-three".