137722807 has 4 divisors (see below), whose sum is σ = 137837560. Its totient is φ = 137608056.

The previous prime is 137722771. The next prime is 137722829. The reversal of 137722807 is 708227731.

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

It is a cyclic number.

It is not a de Polignac number, because 137722807 - 2²⁷ = 3505079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137722867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55557 + ... + 57982.

It is an arithmetic number, because the mean of its divisors is an integer number (34459390).

Almost surely, 2^137722807 is an apocalyptic number.

137722807 is a deficient number, since it is larger than the sum of its proper divisors (114753).

137722807 is a wasteful number, since it uses less digits than its factorization.

137722807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114752.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 137722807 is about 11735.5360763793. The cubic root of 137722807 is about 516.4186942325.

The spelling of 137722807 in words is "one hundred thirty-seven million, seven hundred twenty-two thousand, eight hundred seven".