100453381 has 8 divisors (see below), whose sum is σ = 117147200. Its totient is φ = 86102604.

The previous prime is 100453363. The next prime is 100453393. The reversal of 100453381 is 183354001.

It is not a de Polignac number, because 100453381 - 2⁷ = 100453253 is a prime.

It is a super-2 number, since 2×100453381² = 20181763508662322, 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 (100453081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146091 + ... + 146776.

It is an arithmetic number, because the mean of its divisors is an integer number (14643400).

Almost surely, 2^100453381 is an apocalyptic number.

It is an amenable number.

100453381 is a deficient number, since it is larger than the sum of its proper divisors (16693819).

100453381 is an frugal number, since it uses more digits than its factorization.

100453381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292888 (or 292874 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 100453381 is about 10022.6434137906. The cubic root of 100453381 is about 464.8592953094.

The spelling of 100453381 in words is "one hundred million, four hundred fifty-three thousand, three hundred eighty-one".