137163998 has 8 divisors (see below), whose sum is σ = 206395992. Its totient is φ = 68365336.

The previous prime is 137163991. The next prime is 137164009. The reversal of 137163998 is 899361731.

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 not an unprimeable number, because it can be changed into a prime (137163991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107540 + ... + 108807.

It is an arithmetic number, because the mean of its divisors is an integer number (25799499).

Almost surely, 2^137163998 is an apocalyptic number.

137163998 is a deficient number, since it is larger than the sum of its proper divisors (69231994).

137163998 is a wasteful number, since it uses less digits than its factorization.

137163998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216666.

The product of its digits is 244944, while the sum is 47.

The square root of 137163998 is about 11711.7034627760. The cubic root of 137163998 is about 515.7192927672.

The spelling of 137163998 in words is "one hundred thirty-seven million, one hundred sixty-three thousand, nine hundred ninety-eight".