103485981 has 4 divisors (see below), whose sum is σ = 137981312. Its totient is φ = 68990652.

The previous prime is 103485961. The next prime is 103485983. The reversal of 103485981 is 189584301.

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 not a de Polignac number, because 103485981 - 2⁷ = 103485853 is a prime.

It is a super-2 number, since 2×103485981² = 21418696527064722, 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 (103485983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17247661 + ... + 17247666.

It is an arithmetic number, because the mean of its divisors is an integer number (34495328).

Almost surely, 2^103485981 is an apocalyptic number.

It is an amenable number.

103485981 is a deficient number, since it is larger than the sum of its proper divisors (34495331).

103485981 is an equidigital number, since it uses as much as digits as its factorization.

103485981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34495330.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 103485981 is about 10172.8059550942. The cubic root of 103485981 is about 469.4908943354.

The spelling of 103485981 in words is "one hundred three million, four hundred eighty-five thousand, nine hundred eighty-one".