103155407 has 4 divisors (see below), whose sum is σ = 106712520. Its totient is φ = 99598296.

The previous prime is 103155379. The next prime is 103155413. The reversal of 103155407 is 704551301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704551301 = 4649 ⋅151549.

It is not a de Polignac number, because 103155407 - 2⁶ = 103155343 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 (103155487) 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, 1778513 + ... + 1778570.

It is an arithmetic number, because the mean of its divisors is an integer number (26678130).

Almost surely, 2^103155407 is an apocalyptic number.

103155407 is a deficient number, since it is larger than the sum of its proper divisors (3557113).

103155407 is an equidigital number, since it uses as much as digits as its factorization.

103155407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557112.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 103155407 is about 10156.5450326378. The cubic root of 103155407 is about 468.9904496277.

The spelling of 103155407 in words is "one hundred three million, one hundred fifty-five thousand, four hundred seven".