140872536 has 192 divisors, whose sum is σ = 470246400. Its totient is φ = 37200384.

The previous prime is 140872507. The next prime is 140872547. The reversal of 140872536 is 635278041.

140872536 is a `hidden beast` number, since 1 + 40 + 87 + 2 + 536 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 140872536.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 449916 + ... + 450228.

It is an arithmetic number, because the mean of its divisors is an integer number (2449200).

Almost surely, 2^140872536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140872536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235123200).

140872536 is an abundant number, since it is smaller than the sum of its proper divisors (329373864).

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

140872536 is a wasteful number, since it uses less digits than its factorization.

140872536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 140872536 is about 11868.9736708782. The cubic root of 140872536 is about 520.3259002420.

The spelling of 140872536 in words is "one hundred forty million, eight hundred seventy-two thousand, five hundred thirty-six".