125422121533 has 4 divisors (see below), whose sum is σ = 127478221948. Its totient is φ = 123366021120.

The previous prime is 125422121509. The next prime is 125422121543. The reversal of 125422121533 is 335121224521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34871080644 + 90551040889 = 186738^2 + 300917^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125422121533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125422121495 and 125422121504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125422121543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028050116 + ... + 1028050237.

It is an arithmetic number, because the mean of its divisors is an integer number (31869555487).

Almost surely, 2^125422121533 is an apocalyptic number.

It is an amenable number.

125422121533 is a deficient number, since it is larger than the sum of its proper divisors (2056100415).

125422121533 is an equidigital number, since it uses as much as digits as its factorization.

125422121533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056100414.

The product of its digits is 14400, while the sum is 31.

The spelling of 125422121533 in words is "one hundred twenty-five billion, four hundred twenty-two million, one hundred twenty-one thousand, five hundred thirty-three".