145455521342 has 4 divisors (see below), whose sum is σ = 218183282016. Its totient is φ = 72727760670.

The previous prime is 145455521333. The next prime is 145455521371. The reversal of 145455521342 is 243125554541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243125554541 = 401 ⋅606298141.

It is a self number, because there is not a number n which added to its sum of digits gives 145455521342.

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, 36363880334 + ... + 36363880337.

It is an arithmetic number, because the mean of its divisors is an integer number (54545820504).

Almost surely, 2^145455521342 is an apocalyptic number.

145455521342 is a deficient number, since it is larger than the sum of its proper divisors (72727760674).

145455521342 is an equidigital number, since it uses as much as digits as its factorization.

145455521342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72727760673.

The product of its digits is 480000, while the sum is 41.

The spelling of 145455521342 in words is "one hundred forty-five billion, four hundred fifty-five million, five hundred twenty-one thousand, three hundred forty-two".