137953949 has 8 divisors (see below), whose sum is σ = 157747008. Its totient is φ = 118182240.

The previous prime is 137953939. The next prime is 137953961. The reversal of 137953949 is 949359731.

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

It is a cyclic number.

It is not a de Polignac number, because 137953949 - 2⁸ = 137953693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137953897 and 137953906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137953939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12494 + ... + 20784.

It is an arithmetic number, because the mean of its divisors is an integer number (19718376).

Almost surely, 2^137953949 is an apocalyptic number.

It is an amenable number.

137953949 is a deficient number, since it is larger than the sum of its proper divisors (19793059).

137953949 is an equidigital number, since it uses as much as digits as its factorization.

137953949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10675.

The product of its digits is 918540, while the sum is 50.

The square root of 137953949 is about 11745.3799001991. The cubic root of 137953949 is about 516.7074368567.

The spelling of 137953949 in words is "one hundred thirty-seven million, nine hundred fifty-three thousand, nine hundred forty-nine".