125011155 has 8 divisors (see below), whose sum is σ = 200017872. Its totient is φ = 66672608.

The previous prime is 125011151. The next prime is 125011157. The reversal of 125011155 is 551110521.

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 125011155 - 2² = 125011151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125011151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4167024 + ... + 4167053.

It is an arithmetic number, because the mean of its divisors is an integer number (25002234).

Almost surely, 2^125011155 is an apocalyptic number.

125011155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125011155 is a deficient number, since it is larger than the sum of its proper divisors (75006717).

125011155 is an equidigital number, since it uses as much as digits as its factorization.

125011155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8334085.

The product of its (nonzero) digits is 250, while the sum is 21.

The square root of 125011155 is about 11180.8387431355. The cubic root of 125011155 is about 500.0148728909.

Adding to 125011155 its reverse (551110521), we get a palindrome (676121676).

The spelling of 125011155 in words is "one hundred twenty-five million, eleven thousand, one hundred fifty-five".