145521134101 has 4 divisors (see below), whose sum is σ = 166309867552. Its totient is φ = 124732400652.

The previous prime is 145521134081. The next prime is 145521134107. The reversal of 145521134101 is 101431125541.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101431125541 = 149 ⋅680745809.

It is a cyclic number.

It is not a de Polignac number, because 145521134101 - 2¹⁵ = 145521101333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145521134101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145521134107) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10394366715 + ... + 10394366728.

It is an arithmetic number, because the mean of its divisors is an integer number (41577466888).

Almost surely, 2^145521134101 is an apocalyptic number.

It is an amenable number.

145521134101 is a deficient number, since it is larger than the sum of its proper divisors (20788733451).

145521134101 is an equidigital number, since it uses as much as digits as its factorization.

145521134101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20788733450.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 145521134101 its reverse (101431125541), we get a palindrome (246952259642).

The spelling of 145521134101 in words is "one hundred forty-five billion, five hundred twenty-one million, one hundred thirty-four thousand, one hundred one".