103133489 has 4 divisors (see below), whose sum is σ = 103576356. Its totient is φ = 102690624.

The previous prime is 103133477. The next prime is 103133507. The reversal of 103133489 is 984331301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984331301 = 25847 ⋅38083.

It can be written as a sum of positive squares in 2 ways, for example, as 45495025 + 57638464 = 6745^2 + 7592^2 .

It is a cyclic number.

It is not a de Polignac number, because 103133489 - 2¹⁶ = 103067953 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103133419) 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, 221084 + ... + 221549.

It is an arithmetic number, because the mean of its divisors is an integer number (25894089).

Almost surely, 2^103133489 is an apocalyptic number.

It is an amenable number.

103133489 is a deficient number, since it is larger than the sum of its proper divisors (442867).

103133489 is an equidigital number, since it uses as much as digits as its factorization.

103133489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442866.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 103133489 is about 10155.4659666605. The cubic root of 103133489 is about 468.9572309431.

The spelling of 103133489 in words is "one hundred three million, one hundred thirty-three thousand, four hundred eighty-nine".