137740146 has 16 divisors (see below), whose sum is σ = 287457984. Its totient is φ = 43917104.

The previous prime is 137740133. The next prime is 137740147. The reversal of 137740146 is 641047731.

It is not an unprimeable number, because it can be changed into a prime (137740147) 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, 498921 + ... + 499196.

It is an arithmetic number, because the mean of its divisors is an integer number (17966124).

Almost surely, 2^137740146 is an apocalyptic number.

137740146 is an abundant number, since it is smaller than the sum of its proper divisors (149717838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137740146 is a wasteful number, since it uses less digits than its factorization.

137740146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998145.

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

The square root of 137740146 is about 11736.2747922840. The cubic root of 137740146 is about 516.4403653175.

Adding to 137740146 its reverse (641047731), we get a palindrome (778787877).

The spelling of 137740146 in words is "one hundred thirty-seven million, seven hundred forty thousand, one hundred forty-six".