137726131 has 4 divisors (see below), whose sum is σ = 137784600. Its totient is φ = 137667664.

The previous prime is 137726111. The next prime is 137726137. The reversal of 137726131 is 131627731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131627731 = 67 ⋅1964593.

It is a cyclic number.

It is not a de Polignac number, because 137726131 - 2¹³ = 137717939 is a prime.

It is a super-2 number, since 2×137726131² = 37936974320458322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137726093 and 137726102.

It is not an unprimeable number, because it can be changed into a prime (137726137) 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, 25546 + ... + 30463.

It is an arithmetic number, because the mean of its divisors is an integer number (34446150).

Almost surely, 2^137726131 is an apocalyptic number.

137726131 is a deficient number, since it is larger than the sum of its proper divisors (58469).

137726131 is an equidigital number, since it uses as much as digits as its factorization.

137726131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58468.

The product of its digits is 5292, while the sum is 31.

The square root of 137726131 is about 11735.6776966650. The cubic root of 137726131 is about 516.4228488625.

The spelling of 137726131 in words is "one hundred thirty-seven million, seven hundred twenty-six thousand, one hundred thirty-one".