137091466 has 4 divisors (see below), whose sum is σ = 205637202. Its totient is φ = 68545732.

The previous prime is 137091463. The next prime is 137091481. The reversal of 137091466 is 664190731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664190731 = 17 ⋅39070043.

It can be written as a sum of positive squares in only one way, i.e., 70913241 + 66178225 = 8421^2 + 8135^2 .

It is not an unprimeable number, because it can be changed into a prime (137091463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34272865 + ... + 34272868.

Almost surely, 2^137091466 is an apocalyptic number.

137091466 is a deficient number, since it is larger than the sum of its proper divisors (68545736).

137091466 is an equidigital number, since it uses as much as digits as its factorization.

137091466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68545735.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 137091466 is about 11708.6064926617. The cubic root of 137091466 is about 515.6283730223.

The spelling of 137091466 in words is "one hundred thirty-seven million, ninety-one thousand, four hundred sixty-six".