125321355 has 24 divisors (see below), whose sum is σ = 217698000. Its totient is φ = 66692160.

The previous prime is 125321351. The next prime is 125321377. The reversal of 125321355 is 553123521.

It is a happy number.

It is not a de Polignac number, because 125321355 - 2² = 125321351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125321351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19665 + ... + 25245.

It is an arithmetic number, because the mean of its divisors is an integer number (9070750).

Almost surely, 2^125321355 is an apocalyptic number.

125321355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125321355 is a deficient number, since it is larger than the sum of its proper divisors (92376645).

125321355 is a wasteful number, since it uses less digits than its factorization.

125321355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091 (or 6088 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 125321355 is about 11194.7020951877. The cubic root of 125321355 is about 500.4281066781.

Adding to 125321355 its reverse (553123521), we get a palindrome (678444876).

The spelling of 125321355 in words is "one hundred twenty-five million, three hundred twenty-one thousand, three hundred fifty-five".