137173433 has 4 divisors (see below), whose sum is σ = 137620560. Its totient is φ = 136726308.

The previous prime is 137173429. The next prime is 137173457. The reversal of 137173433 is 334371731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334371731 = 71 ⋅4709461.

It is a cyclic number.

It is not a de Polignac number, because 137173433 - 2² = 137173429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137173433.

It is not an unprimeable number, because it can be changed into a prime (137173033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223103 + ... + 223716.

It is an arithmetic number, because the mean of its divisors is an integer number (34405140).

Almost surely, 2^137173433 is an apocalyptic number.

It is an amenable number.

137173433 is a deficient number, since it is larger than the sum of its proper divisors (447127).

137173433 is an equidigital number, since it uses as much as digits as its factorization.

137173433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447126.

The product of its digits is 15876, while the sum is 32.

The square root of 137173433 is about 11712.1062580562. The cubic root of 137173433 is about 515.7311172985.

The spelling of 137173433 in words is "one hundred thirty-seven million, one hundred seventy-three thousand, four hundred thirty-three".