103431149 has 2 divisors, whose sum is σ = 103431150. Its totient is φ = 103431148.

The previous prime is 103431137. The next prime is 103431157. The reversal of 103431149 is 941134301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101868649 + 1562500 = 10093^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 103431149 - 2¹² = 103427053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103433149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51715574 + 51715575.

It is an arithmetic number, because the mean of its divisors is an integer number (51715575).

Almost surely, 2^103431149 is an apocalyptic number.

It is an amenable number.

103431149 is a deficient number, since it is larger than the sum of its proper divisors (1).

103431149 is an equidigital number, since it uses as much as digits as its factorization.

103431149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 103431149 is about 10170.1105697038. The cubic root of 103431149 is about 469.4079598404.

The spelling of 103431149 in words is "one hundred three million, four hundred thirty-one thousand, one hundred forty-nine".