133654561125 has 48 divisors (see below), whose sum is σ = 232491569856. Its totient is φ = 68183095200.

The previous prime is 133654561123. The next prime is 133654561147. The reversal of 133654561125 is 521165456331.

It is a happy number.

It is not a de Polignac number, because 133654561125 - 2¹ = 133654561123 is a prime.

It is a super-2 number, since 2×133654561125² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133654561123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 138499 + ... + 535248.

It is an arithmetic number, because the mean of its divisors is an integer number (4843574372).

Almost surely, 2^133654561125 is an apocalyptic number.

133654561125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133654561125 is a deficient number, since it is larger than the sum of its proper divisors (98837008731).

133654561125 is an equidigital number, since it uses as much as digits as its factorization.

133654561125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673811 (or 673778 counting only the distinct ones).

The product of its digits is 324000, while the sum is 42.

The spelling of 133654561125 in words is "one hundred thirty-three billion, six hundred fifty-four million, five hundred sixty-one thousand, one hundred twenty-five".