103431155 has 8 divisors (see below), whose sum is σ = 130650000. Its totient is φ = 78389856.

The previous prime is 103431149. The next prime is 103431157. The reversal of 103431155 is 551134301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103431155 - 2⁶ = 103431091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103431155.

It is not an unprimeable number, because it can be changed into a prime (103431157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544280 + ... + 544469.

It is an arithmetic number, because the mean of its divisors is an integer number (16331250).

Almost surely, 2^103431155 is an apocalyptic number.

103431155 is a deficient number, since it is larger than the sum of its proper divisors (27218845).

103431155 is a wasteful number, since it uses less digits than its factorization.

103431155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088773.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 103431155 is about 10170.1108646858. The cubic root of 103431155 is about 469.4079689171.

Adding to 103431155 its reverse (551134301), we get a palindrome (654565456).

The spelling of 103431155 in words is "one hundred three million, four hundred thirty-one thousand, one hundred fifty-five".