100140049 has 3 divisors (see below), whose sum is σ = 100150057. Its totient is φ = 100130042.

The previous prime is 100140043. The next prime is 100140059. The reversal of 100140049 is 940041001.

The square root of 100140049 is 10007.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 100140049 - 2²³ = 91751441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100140043) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5004 + ... + 15010.

Almost surely, 2^100140049 is an apocalyptic number.

100140049 is the 10007-th square number.

100140049 is the 5004-th centered octagonal number.

It is an amenable number.

100140049 is a deficient number, since it is larger than the sum of its proper divisors (10008).

100140049 is an frugal number, since it uses more digits than its factorization.

100140049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20014 (or 10007 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The cubic root of 100140049 is about 464.3754655772.

Multiplying 100140049 by its product of nonzero digits (144), we get a square (14420167056 = 120084²).

The spelling of 100140049 in words is "one hundred million, one hundred forty thousand, forty-nine".