145621550141 has 4 divisors (see below), whose sum is σ = 146175244512. Its totient is φ = 145067855772.

The previous prime is 145621550099. The next prime is 145621550143. The reversal of 145621550141 is 141055126541.

145621550141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145621550141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145621550143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276846791 + ... + 276847316.

It is an arithmetic number, because the mean of its divisors is an integer number (36543811128).

Almost surely, 2^145621550141 is an apocalyptic number.

It is an amenable number.

145621550141 is a deficient number, since it is larger than the sum of its proper divisors (553694371).

145621550141 is an equidigital number, since it uses as much as digits as its factorization.

145621550141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553694370.

The product of its (nonzero) digits is 24000, while the sum is 35.

Adding to 145621550141 its reverse (141055126541), we get a palindrome (286676676682).

The spelling of 145621550141 in words is "one hundred forty-five billion, six hundred twenty-one million, five hundred fifty thousand, one hundred forty-one".