137690398 has 8 divisors (see below), whose sum is σ = 206612640. Its totient is φ = 68819520.

The previous prime is 137690389. The next prime is 137690411. The reversal of 137690398 is 893096731.

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, 5238 + ... + 17401.

It is an arithmetic number, because the mean of its divisors is an integer number (25826580).

Almost surely, 2^137690398 is an apocalyptic number.

137690398 is a deficient number, since it is larger than the sum of its proper divisors (68922242).

137690398 is a wasteful number, since it uses less digits than its factorization.

137690398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25682.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 137690398 is about 11734.1551890198. The cubic root of 137690398 is about 516.3781830859.

The spelling of 137690398 in words is "one hundred thirty-seven million, six hundred ninety thousand, three hundred ninety-eight".