33140142125 has 32 divisors (see below), whose sum is σ = 43894128096. Its totient is φ = 24894259200.

The previous prime is 33140142121. The next prime is 33140142137. The reversal of 33140142125 is 52124104133.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 25310900836 + 7829241289 = 159094^2 + 88483^2 .

It is not a de Polignac number, because 33140142125 - 2² = 33140142121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33140142094 and 33140142103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33140142121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902117 + ... + 938133.

It is an arithmetic number, because the mean of its divisors is an integer number (1371691503).

Almost surely, 2^33140142125 is an apocalyptic number.

It is an amenable number.

33140142125 is a deficient number, since it is larger than the sum of its proper divisors (10753985971).

33140142125 is a wasteful number, since it uses less digits than its factorization.

33140142125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36482 (or 36472 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 33140142125 its reverse (52124104133), we get a palindrome (85264246258).

The spelling of 33140142125 in words is "thirty-three billion, one hundred forty million, one hundred forty-two thousand, one hundred twenty-five".