137443655 has 4 divisors (see below), whose sum is σ = 164932392. Its totient is φ = 109954920.

The previous prime is 137443643. The next prime is 137443661. The reversal of 137443655 is 556344731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556344731 = 4271 ⋅130261.

It is not a de Polignac number, because 137443655 - 2⁴ = 137443639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13744361 + ... + 13744370.

It is an arithmetic number, because the mean of its divisors is an integer number (41233098).

Almost surely, 2^137443655 is an apocalyptic number.

137443655 is a deficient number, since it is larger than the sum of its proper divisors (27488737).

137443655 is an equidigital number, since it uses as much as digits as its factorization.

137443655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27488736.

The product of its digits is 151200, while the sum is 38.

The square root of 137443655 is about 11723.6365945043. The cubic root of 137443655 is about 516.0695464921.

The spelling of 137443655 in words is "one hundred thirty-seven million, four hundred forty-three thousand, six hundred fifty-five".