15140223405 has 32 divisors (see below), whose sum is σ = 27167529600. Its totient is φ = 7999312896.

The previous prime is 15140223389. The next prime is 15140223407. The reversal of 15140223405 is 50432204151.

It is not a de Polignac number, because 15140223405 - 2⁴ = 15140223389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140223407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 509620 + ... + 538509.

It is an arithmetic number, because the mean of its divisors is an integer number (848985300).

Almost surely, 2^15140223405 is an apocalyptic number.

15140223405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15140223405 is a deficient number, since it is larger than the sum of its proper divisors (12027306195).

15140223405 is a wasteful number, since it uses less digits than its factorization.

15140223405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048250 (or 1048244 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 15140223405 its reverse (50432204151), we get a palindrome (65572427556).

The spelling of 15140223405 in words is "fifteen billion, one hundred forty million, two hundred twenty-three thousand, four hundred five".