103787431 has 32 divisors (see below), whose sum is σ = 127526400. Its totient is φ = 83297280.

The previous prime is 103787429. The next prime is 103787447. The reversal of 103787431 is 134787301.

It is not a de Polignac number, because 103787431 - 2¹ = 103787429 is a prime.

It is a super-2 number, since 2×103787431² = 21543661667159522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103787401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253555 + ... + 253963.

It is an arithmetic number, because the mean of its divisors is an integer number (3985200).

Almost surely, 2^103787431 is an apocalyptic number.

103787431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103787431 is a deficient number, since it is larger than the sum of its proper divisors (23738969).

103787431 is a wasteful number, since it uses less digits than its factorization.

103787431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 103787431 is about 10187.6116435600. The cubic root of 103787431 is about 469.9463210160.

The spelling of 103787431 in words is "one hundred three million, seven hundred eighty-seven thousand, four hundred thirty-one".