137674221 has 8 divisors (see below), whose sum is σ = 183907104. Its totient is φ = 91612080.

The previous prime is 137674219. The next prime is 137674241. The reversal of 137674221 is 122476731.

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

It is not a de Polignac number, because 137674221 - 2¹ = 137674219 is a prime.

It is a super-2 number, since 2×137674221² = 37908382255913682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137674241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40791 + ... + 44036.

It is an arithmetic number, because the mean of its divisors is an integer number (22988388).

Almost surely, 2^137674221 is an apocalyptic number.

It is an amenable number.

137674221 is a deficient number, since it is larger than the sum of its proper divisors (46232883).

137674221 is an equidigital number, since it uses as much as digits as its factorization.

137674221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85371.

The product of its digits is 14112, while the sum is 33.

The square root of 137674221 is about 11733.4658562592. The cubic root of 137674221 is about 516.3579595091.

The spelling of 137674221 in words is "one hundred thirty-seven million, six hundred seventy-four thousand, two hundred twenty-one".