137967641 has 4 divisors (see below), whose sum is σ = 157677312. Its totient is φ = 118257972.

The previous prime is 137967629. The next prime is 137967653. The reversal of 137967641 is 146769731.

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: 146769731 = 67 ⋅2190593.

It is an interprime number because it is at equal distance from previous prime (137967629) and next prime (137967653).

It is not a de Polignac number, because 137967641 - 2²² = 133773337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137967592 and 137967601.

It is not an unprimeable number, because it can be changed into a prime (137967611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9854825 + ... + 9854838.

It is an arithmetic number, because the mean of its divisors is an integer number (39419328).

Almost surely, 2^137967641 is an apocalyptic number.

It is an amenable number.

137967641 is a deficient number, since it is larger than the sum of its proper divisors (19709671).

137967641 is an equidigital number, since it uses as much as digits as its factorization.

137967641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19709670.

The product of its digits is 190512, while the sum is 44.

The square root of 137967641 is about 11745.9627532187. The cubic root of 137967641 is about 516.7245307837.

The spelling of 137967641 in words is "one hundred thirty-seven million, nine hundred sixty-seven thousand, six hundred forty-one".