137651705 has 8 divisors (see below), whose sum is σ = 165253704. Its totient is φ = 110073600.

The previous prime is 137651681. The next prime is 137651743. The reversal of 137651705 is 507156731.

137651705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11881 + 137639824 = 109^2 + 11732^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-137651705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11195 + ... + 20015.

It is an arithmetic number, because the mean of its divisors is an integer number (20656713).

Almost surely, 2^137651705 is an apocalyptic number.

It is an amenable number.

137651705 is a deficient number, since it is larger than the sum of its proper divisors (27601999).

137651705 is an equidigital number, since it uses as much as digits as its factorization.

137651705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11947.

The product of its (nonzero) digits is 22050, while the sum is 35.

The square root of 137651705 is about 11732.5063392269. The cubic root of 137651705 is about 516.3298086333.

The spelling of 137651705 in words is "one hundred thirty-seven million, six hundred fifty-one thousand, seven hundred five".