140215500 has 72 divisors (see below), whose sum is σ = 442347360. Its totient is φ = 37389600.

The previous prime is 140215489. The next prime is 140215513. The reversal of 140215500 is 5512041.

140215500 is a `hidden beast` number, since 140 + 21 + 5 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11080 + ... + 20079.

Almost surely, 2^140215500 is an apocalyptic number.

140215500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140215500 is an abundant number, since it is smaller than the sum of its proper divisors (302131860).

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

140215500 is a wasteful number, since it uses less digits than its factorization.

140215500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31184 (or 31169 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 140215500 is about 11841.2626015979. The cubic root of 140215500 is about 519.5156980006.

Adding to 140215500 its reverse (5512041), we get a palindrome (145727541).

It can be divided in two parts, 140215 and 500, that added together give a triangular number (140715 = T₅₃₀).

The spelling of 140215500 in words is "one hundred forty million, two hundred fifteen thousand, five hundred".