36139950 has 216 divisors, whose sum is σ = 124043400. Its totient is φ = 7459200.

The previous prime is 36139927. The next prime is 36139951. The reversal of 36139950 is 5993163.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36139951) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 242476 + ... + 242624.

It is an arithmetic number, because the mean of its divisors is an integer number (574275).

Almost surely, 2^36139950 is an apocalyptic number.

36139950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 36139950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62021700).

36139950 is an abundant number, since it is smaller than the sum of its proper divisors (87903450).

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

36139950 is a wasteful number, since it uses less digits than its factorization.

36139950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 36139950 is about 6011.6511874858. The cubic root of 36139950 is about 330.6200463688.

The spelling of 36139950 in words is "thirty-six million, one hundred thirty-nine thousand, nine hundred fifty".