137625743 has 4 divisors (see below), whose sum is σ = 137731248. Its totient is φ = 137520240.

The previous prime is 137625739. The next prime is 137625749. The reversal of 137625743 is 347526731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347526731 = 43 ⋅8082017.

It is a cyclic number.

It is not a de Polignac number, because 137625743 - 2² = 137625739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137625697 and 137625706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137625749) 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, 50771 + ... + 53412.

It is an arithmetic number, because the mean of its divisors is an integer number (34432812).

Almost surely, 2^137625743 is an apocalyptic number.

137625743 is a deficient number, since it is larger than the sum of its proper divisors (105505).

137625743 is a wasteful number, since it uses less digits than its factorization.

137625743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105504.

The product of its digits is 105840, while the sum is 38.

The square root of 137625743 is about 11731.3998738428. The cubic root of 137625743 is about 516.2973455475.

The spelling of 137625743 in words is "one hundred thirty-seven million, six hundred twenty-five thousand, seven hundred forty-three".