103431749 has 4 divisors (see below), whose sum is σ = 104009760. Its totient is φ = 102853740.

The previous prime is 103431739. The next prime is 103431751. The reversal of 103431749 is 947134301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103431749 - 2⁴ = 103431733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103431739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288737 + ... + 289094.

It is an arithmetic number, because the mean of its divisors is an integer number (26002440).

Almost surely, 2^103431749 is an apocalyptic number.

It is an amenable number.

103431749 is a deficient number, since it is larger than the sum of its proper divisors (578011).

103431749 is an equidigital number, since it uses as much as digits as its factorization.

103431749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578010.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 103431749 is about 10170.1400678653. The cubic root of 103431749 is about 469.4088675110.

The spelling of 103431749 in words is "one hundred three million, four hundred thirty-one thousand, seven hundred forty-nine".