137343487 has 4 divisors (see below), whose sum is σ = 137994616. Its totient is φ = 136692360.

The previous prime is 137343469. The next prime is 137343491. The reversal of 137343487 is 784343731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 784343731 = 19 ⋅41281249.

It is a cyclic number.

It is not a de Polignac number, because 137343487 - 2⁷ = 137343359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137343407) 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, 325248 + ... + 325669.

It is an arithmetic number, because the mean of its divisors is an integer number (34498654).

Almost surely, 2^137343487 is an apocalyptic number.

137343487 is a deficient number, since it is larger than the sum of its proper divisors (651129).

137343487 is an equidigital number, since it uses as much as digits as its factorization.

137343487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651128.

The product of its digits is 169344, while the sum is 40.

The square root of 137343487 is about 11719.3637625939. The cubic root of 137343487 is about 515.9441466997.

The spelling of 137343487 in words is "one hundred thirty-seven million, three hundred forty-three thousand, four hundred eighty-seven".