125312355 has 72 divisors (see below), whose sum is σ = 267613632. Its totient is φ = 53899776.

The previous prime is 125312347. The next prime is 125312381. The reversal of 125312355 is 553213521.

It is a happy number.

It is not a de Polignac number, because 125312355 - 2³ = 125312347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 35814 + ... + 39156.

It is an arithmetic number, because the mean of its divisors is an integer number (3716856).

Almost surely, 2^125312355 is an apocalyptic number.

125312355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

125312355 is an abundant number, since it is smaller than the sum of its proper divisors (142301277).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125312355 is a wasteful number, since it uses less digits than its factorization.

125312355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385 (or 3375 counting only the distinct ones).

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

The square root of 125312355 is about 11194.3001121106. The cubic root of 125312355 is about 500.4161269140.

Adding to 125312355 its reverse (553213521), we get a palindrome (678525876).

The spelling of 125312355 in words is "one hundred twenty-five million, three hundred twelve thousand, three hundred fifty-five".