137603743 has 4 divisors (see below), whose sum is σ = 137660848. Its totient is φ = 137546640.

The previous prime is 137603737. The next prime is 137603747. The reversal of 137603743 is 347306731.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137603743 is a prime.

It is a super-2 number, since 2×137603743² = 37869580175220098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137603699 and 137603708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137603747) 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, 24771 + ... + 29812.

It is an arithmetic number, because the mean of its divisors is an integer number (34415212).

Almost surely, 2^137603743 is an apocalyptic number.

137603743 is a deficient number, since it is larger than the sum of its proper divisors (57105).

137603743 is an equidigital number, since it uses as much as digits as its factorization.

137603743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57104.

The product of its (nonzero) digits is 31752, while the sum is 34.

The square root of 137603743 is about 11730.4621818580. The cubic root of 137603743 is about 516.2698333814.

The spelling of 137603743 in words is "one hundred thirty-seven million, six hundred three thousand, seven hundred forty-three".