100523819 has 6 divisors (see below), whose sum is σ = 109698636. Its totient is φ = 91355060.

The previous prime is 100523789. The next prime is 100523821. The reversal of 100523819 is 918325001.

It is not a de Polignac number, because 100523819 - 2¹⁶ = 100458283 is a prime.

It is a super-2 number, since 2×100523819² = 20210076372689522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100523791 and 100523800.

It is not an unprimeable number, because it can be changed into a prime (100523119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31742 + ... + 34764.

It is an arithmetic number, because the mean of its divisors is an integer number (18283106).

Almost surely, 2^100523819 is an apocalyptic number.

100523819 is a deficient number, since it is larger than the sum of its proper divisors (9174817).

100523819 is an frugal number, since it uses more digits than its factorization.

100523819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6057 (or 3034 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 100523819 is about 10026.1567412444. The cubic root of 100523819 is about 464.9679231737.

The spelling of 100523819 in words is "one hundred million, five hundred twenty-three thousand, eight hundred nineteen".