33100145137 has 4 divisors (see below), whose sum is σ = 35047212516. Its totient is φ = 31153077760.

The previous prime is 33100145101. The next prime is 33100145153. The reversal of 33100145137 is 73154100133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73154100133 = 29 ⋅2522555177.

It can be written as a sum of positive squares in 2 ways, for example, as 28530925921 + 4569219216 = 168911^2 + 67596^2 .

It is a cyclic number.

It is not a de Polignac number, because 33100145137 - 2⁷ = 33100145009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33100145167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 973533664 + ... + 973533697.

It is an arithmetic number, because the mean of its divisors is an integer number (8761803129).

Almost surely, 2^33100145137 is an apocalyptic number.

It is an amenable number.

33100145137 is a deficient number, since it is larger than the sum of its proper divisors (1947067379).

33100145137 is a wasteful number, since it uses less digits than its factorization.

33100145137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1947067378.

The product of its (nonzero) digits is 3780, while the sum is 28.

The spelling of 33100145137 in words is "thirty-three billion, one hundred million, one hundred forty-five thousand, one hundred thirty-seven".