100745137 has 4 divisors (see below), whose sum is σ = 100765476. Its totient is φ = 100724800.

The previous prime is 100745131. The next prime is 100745149. The reversal of 100745137 is 731547001.

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 73119601 + 27625536 = 8551^2 + 5256^2 .

It is a cyclic number.

It is not a de Polignac number, because 100745137 - 2¹⁹ = 100220849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100745131) 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 in 3 ways as a sum of consecutive naturals, for example, 2637 + ... + 14437.

It is an arithmetic number, because the mean of its divisors is an integer number (25191369).

Almost surely, 2^100745137 is an apocalyptic number.

It is an amenable number.

100745137 is a deficient number, since it is larger than the sum of its proper divisors (20339).

100745137 is an equidigital number, since it uses as much as digits as its factorization.

100745137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20338.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 100745137 is about 10037.1877037345. The cubic root of 100745137 is about 465.3089048546.

The spelling of 100745137 in words is "one hundred million, seven hundred forty-five thousand, one hundred thirty-seven".