15122135342 has 4 divisors (see below), whose sum is σ = 22683203016. Its totient is φ = 7561067670.

The previous prime is 15122135317. The next prime is 15122135401. The reversal of 15122135342 is 24353122151.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×15122135342³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3780533834 + ... + 3780533837.

It is an arithmetic number, because the mean of its divisors is an integer number (5670800754).

Almost surely, 2^15122135342 is an apocalyptic number.

15122135342 is a deficient number, since it is larger than the sum of its proper divisors (7561067674).

15122135342 is an equidigital number, since it uses as much as digits as its factorization.

15122135342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561067673.

The product of its digits is 7200, while the sum is 29.

Adding to 15122135342 its reverse (24353122151), we get a palindrome (39475257493).

The spelling of 15122135342 in words is "fifteen billion, one hundred twenty-two million, one hundred thirty-five thousand, three hundred forty-two".