103158421 has 8 divisors (see below), whose sum is σ = 106700288. Its totient is φ = 99630000.

The previous prime is 103158409. The next prime is 103158443. The reversal of 103158421 is 124851301.

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 103158421 - 2¹⁷ = 103027349 is a prime.

It is a super-3 number, since 3×103158421³ (a number of 25 digits) contains 333 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 (103158721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13696 + ... + 19846.

It is an arithmetic number, because the mean of its divisors is an integer number (13337536).

Almost surely, 2^103158421 is an apocalyptic number.

It is an amenable number.

103158421 is a deficient number, since it is larger than the sum of its proper divisors (3541867).

103158421 is an equidigital number, since it uses as much as digits as its factorization.

103158421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6723.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 103158421 is about 10156.6934087822. The cubic root of 103158421 is about 468.9950172456.

The spelling of 103158421 in words is "one hundred three million, one hundred fifty-eight thousand, four hundred twenty-one".