103153945 has 12 divisors (see below), whose sum is σ = 130644900. Its totient is φ = 78178464.

The previous prime is 103153933. The next prime is 103153949. The reversal of 103153945 is 549351301.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15768841 + 87385104 = 3971^2 + 9348^2 .

It is not a de Polignac number, because 103153945 - 2⁵ = 103153913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103153949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26770 + ... + 30379.

It is an arithmetic number, because the mean of its divisors is an integer number (10887075).

Almost surely, 2^103153945 is an apocalyptic number.

It is an amenable number.

103153945 is a deficient number, since it is larger than the sum of its proper divisors (27490955).

103153945 is an equidigital number, since it uses as much as digits as its factorization.

103153945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57192 (or 57173 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 103153945 is about 10156.4730590890. The cubic root of 103153945 is about 468.9882339827.

The spelling of 103153945 in words is "one hundred three million, one hundred fifty-three thousand, nine hundred forty-five".