137945222 has 8 divisors (see below), whose sum is σ = 208927056. Its totient is φ = 68302872.

The previous prime is 137945219. The next prime is 137945239. The reversal of 137945222 is 222549731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 334613 + ... + 335024.

It is an arithmetic number, because the mean of its divisors is an integer number (26115882).

Almost surely, 2^137945222 is an apocalyptic number.

137945222 is a deficient number, since it is larger than the sum of its proper divisors (70981834).

137945222 is a wasteful number, since it uses less digits than its factorization.

137945222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669742.

The product of its digits is 30240, while the sum is 35.

The square root of 137945222 is about 11745.0083865445. The cubic root of 137945222 is about 516.6965409481.

The spelling of 137945222 in words is "one hundred thirty-seven million, nine hundred forty-five thousand, two hundred twenty-two".