137203001 has 8 divisors (see below), whose sum is σ = 147916104. Its totient is φ = 126512640.

The previous prime is 137202991. The next prime is 137203007. The reversal of 137203001 is 100302731.

It can be written as a sum of positive squares in 4 ways, for example, as 336400 + 136866601 = 580^2 + 11699^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137203001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137203007) 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 7 ways as a sum of consecutive naturals, for example, 8105 + ... + 18441.

It is an arithmetic number, because the mean of its divisors is an integer number (18489513).

Almost surely, 2^137203001 is an apocalyptic number.

It is an amenable number.

137203001 is a deficient number, since it is larger than the sum of its proper divisors (10713103).

137203001 is a wasteful number, since it uses less digits than its factorization.

137203001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11371.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 137203001 is about 11713.3684736714. The cubic root of 137203001 is about 515.7681702511.

Adding to 137203001 its reverse (100302731), we get a palindrome (237505732).

The spelling of 137203001 in words is "one hundred thirty-seven million, two hundred three thousand, one".