103421745 has 32 divisors (see below), whose sum is σ = 210128640. Its totient is φ = 47278080.

The previous prime is 103421737. The next prime is 103421767. The reversal of 103421745 is 547124301.

It is not a de Polignac number, because 103421745 - 2³ = 103421737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53776 + ... + 55665.

It is an arithmetic number, because the mean of its divisors is an integer number (6566520).

Almost surely, 2^103421745 is an apocalyptic number.

103421745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103421745 is an abundant number, since it is smaller than the sum of its proper divisors (106706895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103421745 is a wasteful number, since it uses less digits than its factorization.

103421745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109462 (or 109456 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 103421745 is about 10169.6482240046. The cubic root of 103421745 is about 469.3937331582.

The spelling of 103421745 in words is "one hundred three million, four hundred twenty-one thousand, seven hundred forty-five".