145495980421 has 8 divisors (see below), whose sum is σ = 158734826784. Its totient is φ = 132259123920.

The previous prime is 145495980397. The next prime is 145495980437. The reversal of 145495980421 is 124089594541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145495980421 - 2¹¹ = 145495978373 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 (145495980121) 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 7 ways as a sum of consecutive naturals, for example, 342475 + ... + 638968.

It is an arithmetic number, because the mean of its divisors is an integer number (19841853348).

Almost surely, 2^145495980421 is an apocalyptic number.

145495980421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145495980421 is a deficient number, since it is larger than the sum of its proper divisors (13238846363).

145495980421 is a wasteful number, since it uses less digits than its factorization.

145495980421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994931.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 145495980421 in words is "one hundred forty-five billion, four hundred ninety-five million, nine hundred eighty thousand, four hundred twenty-one".