101802138 has 16 divisors (see below), whose sum is σ = 203853216. Its totient is φ = 33892560.

The previous prime is 101802131. The next prime is 101802161. The reversal of 101802138 is 831208101.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101802131) 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, 4828 + ... + 15063.

It is an arithmetic number, because the mean of its divisors is an integer number (12740826).

Almost surely, 2^101802138 is an apocalyptic number.

101802138 is an abundant number, since it is smaller than the sum of its proper divisors (102051078).

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

101802138 is a wasteful number, since it uses less digits than its factorization.

101802138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20749.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 101802138 is about 10089.7045546438. The cubic root of 101802138 is about 466.9305608337.

The spelling of 101802138 in words is "one hundred one million, eight hundred two thousand, one hundred thirty-eight".