140105415 has 32 divisors (see below), whose sum is σ = 238645440. Its totient is φ = 69945344.

The previous prime is 140105401. The next prime is 140105437. The reversal of 140105415 is 514501041.

It is not a de Polignac number, because 140105415 - 2¹² = 140101319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140105391 and 140105400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48841 + ... + 51629.

It is an arithmetic number, because the mean of its divisors is an integer number (7457670).

Almost surely, 2^140105415 is an apocalyptic number.

140105415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140105415 is a deficient number, since it is larger than the sum of its proper divisors (98540025).

140105415 is a wasteful number, since it uses less digits than its factorization.

140105415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 140105415 is about 11836.6133247648. The cubic root of 140105415 is about 519.3797029091.

Adding to 140105415 its reverse (514501041), we get a palindrome (654606456).

The spelling of 140105415 in words is "one hundred forty million, one hundred five thousand, four hundred fifteen".