103491637 has 4 divisors (see below), whose sum is σ = 104063596. Its totient is φ = 102919680.

The previous prime is 103491629. The next prime is 103491643. The reversal of 103491637 is 736194301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 736194301 = 20939 ⋅35159.

It can be written as a sum of positive squares in 2 ways, for example, as 7177041 + 96314596 = 2679^2 + 9814^2 .

It is a cyclic number.

It is not a de Polignac number, because 103491637 - 2³ = 103491629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103491137) 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, 285708 + ... + 286069.

It is an arithmetic number, because the mean of its divisors is an integer number (26015899).

Almost surely, 2^103491637 is an apocalyptic number.

It is an amenable number.

103491637 is a deficient number, since it is larger than the sum of its proper divisors (571959).

103491637 is an equidigital number, since it uses as much as digits as its factorization.

103491637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571958.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 103491637 is about 10173.0839473583. The cubic root of 103491637 is about 469.4994474814.

The spelling of 103491637 in words is "one hundred three million, four hundred ninety-one thousand, six hundred thirty-seven".