137628494 has 4 divisors (see below), whose sum is σ = 206442744. Its totient is φ = 68814246.

The previous prime is 137628467. The next prime is 137628529. The reversal of 137628494 is 494826731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494826731 = 7 ⋅70689533.

It is a super-3 number, since 3×137628494³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34407122 + ... + 34407125.

It is an arithmetic number, because the mean of its divisors is an integer number (51610686).

Almost surely, 2^137628494 is an apocalyptic number.

137628494 is a deficient number, since it is larger than the sum of its proper divisors (68814250).

137628494 is an equidigital number, since it uses as much as digits as its factorization.

137628494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68814249.

The product of its digits is 290304, while the sum is 44.

The square root of 137628494 is about 11731.5171226913. The cubic root of 137628494 is about 516.3007856125.

The spelling of 137628494 in words is "one hundred thirty-seven million, six hundred twenty-eight thousand, four hundred ninety-four".