103144531 has 4 divisors (see below), whose sum is σ = 117879472. Its totient is φ = 88409592.

The previous prime is 103144529. The next prime is 103144541. The reversal of 103144531 is 135441301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103144531 - 2¹ = 103144529 is a prime.

It is a super-2 number, since 2×103144531² = 21277588550419922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103144501) 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, 7367460 + ... + 7367473.

It is an arithmetic number, because the mean of its divisors is an integer number (29469868).

Almost surely, 2^103144531 is an apocalyptic number.

103144531 is a deficient number, since it is larger than the sum of its proper divisors (14734941).

103144531 is an equidigital number, since it uses as much as digits as its factorization.

103144531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14734940.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 103144531 is about 10156.0096002318. The cubic root of 103144531 is about 468.9739666675.

Adding to 103144531 its reverse (135441301), we get a palindrome (238585832).

The spelling of 103144531 in words is "one hundred three million, one hundred forty-four thousand, five hundred thirty-one".