137475643 has 2 divisors, whose sum is σ = 137475644. Its totient is φ = 137475642.

The previous prime is 137475619. The next prime is 137475647. The reversal of 137475643 is 346574731.

137475643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137475643 - 2⁹ = 137475131 is a prime.

It is a super-3 number, since 3×137475643³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137475596 and 137475605.

It is not a weakly prime, because it can be changed into another prime (137475647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68737821 + 68737822.

It is an arithmetic number, because the mean of its divisors is an integer number (68737822).

Almost surely, 2^137475643 is an apocalyptic number.

137475643 is a deficient number, since it is larger than the sum of its proper divisors (1).

137475643 is an equidigital number, since it uses as much as digits as its factorization.

137475643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 40.

The square root of 137475643 is about 11725.0007675906. Note that the first 3 decimals coincide. The cubic root of 137475643 is about 516.1095792657.

The spelling of 137475643 in words is "one hundred thirty-seven million, four hundred seventy-five thousand, six hundred forty-three".