137805051 has 4 divisors (see below), whose sum is σ = 183740072. Its totient is φ = 91870032.

The previous prime is 137805049. The next prime is 137805079. The reversal of 137805051 is 150508731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150508731 = 3 ⋅50169577.

It is not a de Polignac number, because 137805051 - 2¹ = 137805049 is a prime.

It is a super-2 number, since 2×137805051² = 37980464162225202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137805091) 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, 22967506 + ... + 22967511.

It is an arithmetic number, because the mean of its divisors is an integer number (45935018).

Almost surely, 2^137805051 is an apocalyptic number.

137805051 is a deficient number, since it is larger than the sum of its proper divisors (45935021).

137805051 is an equidigital number, since it uses as much as digits as its factorization.

137805051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45935020.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 137805051 is about 11739.0396114844. The cubic root of 137805051 is about 516.5214704499.

The spelling of 137805051 in words is "one hundred thirty-seven million, eight hundred five thousand, fifty-one".