137443534 has 4 divisors (see below), whose sum is σ = 206165304. Its totient is φ = 68721766.

The previous prime is 137443519. The next prime is 137443543. The reversal of 137443534 is 435344731.

137443534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 137443534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34360882 + ... + 34360885.

It is an arithmetic number, because the mean of its divisors is an integer number (51541326).

Almost surely, 2^137443534 is an apocalyptic number.

137443534 is a deficient number, since it is larger than the sum of its proper divisors (68721770).

137443534 is an equidigital number, since it uses as much as digits as its factorization.

137443534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68721769.

The product of its digits is 60480, while the sum is 34.

The square root of 137443534 is about 11723.6314339884. The cubic root of 137443534 is about 516.0693950496.

The spelling of 137443534 in words is "one hundred thirty-seven million, four hundred forty-three thousand, five hundred thirty-four".