137523214 has 4 divisors (see below), whose sum is σ = 206284824. Its totient is φ = 68761606.

The previous prime is 137523209. The next prime is 137523241. The reversal of 137523214 is 412325731.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34380802 + ... + 34380805.

It is an arithmetic number, because the mean of its divisors is an integer number (51571206).

Almost surely, 2^137523214 is an apocalyptic number.

137523214 is a deficient number, since it is larger than the sum of its proper divisors (68761610).

137523214 is an equidigital number, since it uses as much as digits as its factorization.

137523214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68761609.

The product of its digits is 5040, while the sum is 28.

The square root of 137523214 is about 11727.0292060692. The cubic root of 137523214 is about 516.1691025793.

Adding to 137523214 its reverse (412325731), we get a palindrome (549848945).

The spelling of 137523214 in words is "one hundred thirty-seven million, five hundred twenty-three thousand, two hundred fourteen".