145950561 has 9 divisors (see below), whose sum is σ = 210869841. Its totient is φ = 97276212.

The previous prime is 145950551. The next prime is 145950577. The reversal of 145950561 is 165059541.

The square root of 145950561 is 12081.

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

145950561 is a `hidden beast` number, since 1 + 4 + 5 + 95 + 0 + 561 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 145950561 - 2¹³ = 145942369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145950521) 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, 34230 + ... + 38256.

Almost surely, 2^145950561 is an apocalyptic number.

145950561 is the 12081-st square number.

145950561 is the 6041-st centered octagonal number.

It is an amenable number.

145950561 is a deficient number, since it is larger than the sum of its proper divisors (64919280).

145950561 is an frugal number, since it uses more digits than its factorization.

145950561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8060 (or 4030 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The cubic root of 145950561 is about 526.5043005252.

Multiplying 145950561 by its sum of digits (36), we get a square (5254220196 = 72486²).

The spelling of 145950561 in words is "one hundred forty-five million, nine hundred fifty thousand, five hundred sixty-one".