125135001355 has 64 divisors (see below), whose sum is σ = 186275174400. Its totient is φ = 79050142080.

The previous prime is 125135001353. The next prime is 125135001367. The reversal of 125135001355 is 553100531521.

It is not a de Polignac number, because 125135001355 - 2¹ = 125135001353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125135001353) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48519456 + ... + 48522034.

It is an arithmetic number, because the mean of its divisors is an integer number (2910549600).

Almost surely, 2^125135001355 is an apocalyptic number.

125135001355 is a deficient number, since it is larger than the sum of its proper divisors (61140173045).

125135001355 is an equidigital number, since it uses as much as digits as its factorization.

125135001355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261 (or 3235 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 31.

Adding to 125135001355 its reverse (553100531521), we get a palindrome (678235532876).

The spelling of 125135001355 in words is "one hundred twenty-five billion, one hundred thirty-five million, one thousand, three hundred fifty-five".