137168641 has 4 divisors (see below), whose sum is σ = 137462832. Its totient is φ = 136874452.

The previous prime is 137168639. The next prime is 137168651. The reversal of 137168641 is 146861731.

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.

It is a cyclic number.

It is not a de Polignac number, because 137168641 - 2¹ = 137168639 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 137168641.

It is not an unprimeable number, because it can be changed into a prime (137168621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146395 + ... + 147328.

It is an arithmetic number, because the mean of its divisors is an integer number (34365708).

Almost surely, 2^137168641 is an apocalyptic number.

It is an amenable number.

137168641 is a deficient number, since it is larger than the sum of its proper divisors (294191).

137168641 is an equidigital number, since it uses as much as digits as its factorization.

137168641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294190.

The product of its digits is 24192, while the sum is 37.

The square root of 137168641 is about 11711.9016816228. The cubic root of 137168641 is about 515.7251117325.

The spelling of 137168641 in words is "one hundred thirty-seven million, one hundred sixty-eight thousand, six hundred forty-one".