154542241122535 has 16 divisors (see below), whose sum is σ = 216269025480000. Its totient is φ = 105971822482848.

The previous prime is 154542241122499. The next prime is 154542241122571. The reversal of 154542241122535 is 535221142245451.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (154542241122499) and next prime (154542241122571).

It is a de Polignac number, because none of the positive numbers 2^k-154542241122535 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45056045260 + ... + 45056048689.

It is an arithmetic number, because the mean of its divisors is an integer number (13516814092500).

Almost surely, 2^{154542241122535} is an apocalyptic number.

154542241122535 is a deficient number, since it is larger than the sum of its proper divisors (61726784357465).

154542241122535 is an frugal number, since it uses more digits than its factorization.

154542241122535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90112093975 (or 90112093961 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 46.

Adding to 154542241122535 its reverse (535221142245451), we get a palindrome (689763383367986).

The spelling of 154542241122535 in words is "one hundred fifty-four trillion, five hundred forty-two billion, two hundred forty-one million, one hundred twenty-two thousand, five hundred thirty-five".