125202155 has 8 divisors (see below), whose sum is σ = 161799792. Its totient is φ = 92456928.

The previous prime is 125202139. The next prime is 125202157. The reversal of 125202155 is 551202521.

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

It is a cyclic number.

It is not a de Polignac number, because 125202155 - 2⁴ = 125202139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125202155.

It is not an unprimeable number, because it can be changed into a prime (125202157) 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 7 ways as a sum of consecutive naturals, for example, 963029 + ... + 963158.

It is an arithmetic number, because the mean of its divisors is an integer number (20224974).

Almost surely, 2^125202155 is an apocalyptic number.

125202155 is a deficient number, since it is larger than the sum of its proper divisors (36597637).

125202155 is a wasteful number, since it uses less digits than its factorization.

125202155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926205.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 125202155 is about 11189.3768816677. The cubic root of 125202155 is about 500.2693948268.

Adding to 125202155 its reverse (551202521), we get a palindrome (676404676).

The spelling of 125202155 in words is "one hundred twenty-five million, two hundred two thousand, one hundred fifty-five".