145523041442 has 16 divisors (see below), whose sum is σ = 221640432192. Its totient is φ = 71645503440.

The previous prime is 145523041423. The next prime is 145523041507. The reversal of 145523041442 is 244140325541.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539333 + ... + 762840.

It is an arithmetic number, because the mean of its divisors is an integer number (13852527012).

Almost surely, 2^145523041442 is an apocalyptic number.

145523041442 is a deficient number, since it is larger than the sum of its proper divisors (76117390750).

145523041442 is a wasteful number, since it uses less digits than its factorization.

145523041442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1303033.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 145523041442 its reverse (244140325541), we get a palindrome (389663366983).

The spelling of 145523041442 in words is "one hundred forty-five billion, five hundred twenty-three million, forty-one thousand, four hundred forty-two".