137457502156705 has 4 divisors (see below), whose sum is σ = 164949002588052. Its totient is φ = 109966001725360.

The previous prime is 137457502156691. The next prime is 137457502156721. The reversal of 137457502156705 is 507651205754731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 106579876005009 + 30877626151696 = 10323753^2 + 5556764^2 .

It is not a de Polignac number, because 137457502156705 - 2⁷ = 137457502156577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137457502156705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13745750215666 + ... + 13745750215675.

It is an arithmetic number, because the mean of its divisors is an integer number (41237250647013).

Almost surely, 2^{137457502156705} is an apocalyptic number.

It is an amenable number.

137457502156705 is a deficient number, since it is larger than the sum of its proper divisors (27491500431347).

137457502156705 is an equidigital number, since it uses as much as digits as its factorization.

137457502156705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27491500431346.

The product of its (nonzero) digits is 30870000, while the sum is 58.

The spelling of 137457502156705 in words is "one hundred thirty-seven trillion, four hundred fifty-seven billion, five hundred two million, one hundred fifty-six thousand, seven hundred five".