103445137 has 4 divisors (see below), whose sum is σ = 103624996. Its totient is φ = 103265280.

The previous prime is 103445123. The next prime is 103445201. The reversal of 103445137 is 731544301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731544301 = 2503 ⋅292267.

It can be written as a sum of positive squares in 2 ways, for example, as 97535376 + 5909761 = 9876^2 + 2431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103445137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103440137) 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, 89064 + ... + 90217.

It is an arithmetic number, because the mean of its divisors is an integer number (25906249).

Almost surely, 2^103445137 is an apocalyptic number.

It is an amenable number.

103445137 is a deficient number, since it is larger than the sum of its proper divisors (179859).

103445137 is an equidigital number, since it uses as much as digits as its factorization.

103445137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179858.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 103445137 is about 10170.7982479253. The cubic root of 103445137 is about 469.4291197541.

Adding to 103445137 its reverse (731544301), we get a palindrome (834989438).

The spelling of 103445137 in words is "one hundred three million, four hundred forty-five thousand, one hundred thirty-seven".