15405316142 has 32 divisors (see below), whose sum is σ = 25748858880. Its totient is φ = 6884206560.

The previous prime is 15405316141. The next prime is 15405316159. The reversal of 15405316142 is 24161350451.

It is a junction number, because it is equal to n+sod(n) for n = 15405316099 and 15405316108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15405316141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144908 + ... + 227615.

It is an arithmetic number, because the mean of its divisors is an integer number (804651840).

Almost surely, 2^15405316142 is an apocalyptic number.

15405316142 is a deficient number, since it is larger than the sum of its proper divisors (10343542738).

15405316142 is a wasteful number, since it uses less digits than its factorization.

15405316142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372608.

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 15405316142 its reverse (24161350451), we get a palindrome (39566666593).

The spelling of 15405316142 in words is "fifteen billion, four hundred five million, three hundred sixteen thousand, one hundred forty-two".