140047215 has 96 divisors (see below), whose sum is σ = 287228928. Its totient is φ = 57024000.

The previous prime is 140047153. The next prime is 140047217. The reversal of 140047215 is 512740041.

It is not a de Polignac number, because 140047215 - 2⁹ = 140046703 is a prime.

It is a super-2 number, since 2×140047215² = 39226444858512450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140047217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 927390 + ... + 927540.

It is an arithmetic number, because the mean of its divisors is an integer number (2991968).

Almost surely, 2^140047215 is an apocalyptic number.

140047215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140047215 is an abundant number, since it is smaller than the sum of its proper divisors (147181713).

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

140047215 is a wasteful number, since it uses less digits than its factorization.

140047215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 140047215 is about 11834.1545959143. The cubic root of 140047215 is about 519.3077759122.

Adding to 140047215 its reverse (512740041), we get a palindrome (652787256).

The spelling of 140047215 in words is "one hundred forty million, forty-seven thousand, two hundred fifteen".