145558273441 has 9 divisors (see below), whose sum is σ = 169325996241. Its totient is φ = 124761945252.

The previous prime is 145558273439. The next prime is 145558273447. The reversal of 145558273441 is 144372855541.

The square root of 145558273441 is 381521.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 145558273441 - 2¹ = 145558273439 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145558273447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2643396 + ... + 2697898.

Almost surely, 2^145558273441 is an apocalyptic number.

145558273441 is the 381521-st square number.

145558273441 is the 190761-st centered octagonal number.

It is an amenable number.

145558273441 is a deficient number, since it is larger than the sum of its proper divisors (23767722800).

145558273441 is an frugal number, since it uses more digits than its factorization.

145558273441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109020 (or 54510 counting only the distinct ones).

The product of its digits is 2688000, while the sum is 49.

Multiplying 145558273441 by its sum of digits (49), we get a square (7132355398609 = 2670647²).

145558273441 divided by its sum of digits (49) gives a square (2970577009 = 54503²).

The spelling of 145558273441 in words is "one hundred forty-five billion, five hundred fifty-eight million, two hundred seventy-three thousand, four hundred forty-one".