137205190 has 8 divisors (see below), whose sum is σ = 246969360. Its totient is φ = 54882072.

The previous prime is 137205151. The next prime is 137205191. The reversal of 137205190 is 91502731.

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

It is a super-2 number, since 2×137205190² = 37650528325872200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137205191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6860250 + ... + 6860269.

It is an arithmetic number, because the mean of its divisors is an integer number (30871170).

Almost surely, 2^137205190 is an apocalyptic number.

137205190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137205190 is a deficient number, since it is larger than the sum of its proper divisors (109764170).

137205190 is a wasteful number, since it uses less digits than its factorization.

137205190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13720526.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 137205190 is about 11713.4619135420. The cubic root of 137205190 is about 515.7709131710.

The spelling of 137205190 in words is "one hundred thirty-seven million, two hundred five thousand, one hundred ninety".