137790150649 has 4 divisors (see below), whose sum is σ = 139210667764. Its totient is φ = 136369633536.

The previous prime is 137790150581. The next prime is 137790150689. The reversal of 137790150649 is 946051097731.

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 62184399424 + 75605751225 = 249368^2 + 274965^2 .

It is a cyclic number.

It is not a de Polignac number, because 137790150649 - 2³⁷ = 351197177 is a prime.

It is a super-2 number, since 2×137790150649² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137790150596 and 137790150605.

It is not an unprimeable number, because it can be changed into a prime (137790150689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710258412 + ... + 710258605.

It is an arithmetic number, because the mean of its divisors is an integer number (34802666941).

Almost surely, 2^137790150649 is an apocalyptic number.

It is an amenable number.

137790150649 is a deficient number, since it is larger than the sum of its proper divisors (1420517115).

137790150649 is an equidigital number, since it uses as much as digits as its factorization.

137790150649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420517114.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 137790150649 in words is "one hundred thirty-seven billion, seven hundred ninety million, one hundred fifty thousand, six hundred forty-nine".