103445291 has 16 divisors (see below), whose sum is σ = 113335200. Its totient is φ = 94042368.

The previous prime is 103445267. The next prime is 103445299. The reversal of 103445291 is 192544301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103445291 is a prime.

It is a super-3 number, since 3×103445291³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103445299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108071 + ... + 109023.

It is an arithmetic number, because the mean of its divisors is an integer number (7083450).

Almost surely, 2^103445291 is an apocalyptic number.

103445291 is a deficient number, since it is larger than the sum of its proper divisors (9889909).

103445291 is a wasteful number, since it uses less digits than its factorization.

103445291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 103445291 is about 10170.8058186163. The cubic root of 103445291 is about 469.4293527022.

Adding to 103445291 its reverse (192544301), we get a palindrome (295989592).

The spelling of 103445291 in words is "one hundred three million, four hundred forty-five thousand, two hundred ninety-one".