145854241 has 16 divisors (see below), whose sum is σ = 165894400. Its totient is φ = 127122048.

The previous prime is 145854239. The next prime is 145854257. The reversal of 145854241 is 142458541.

It is a cyclic number.

It is not a de Polignac number, because 145854241 - 2¹ = 145854239 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 145854197 and 145854206.

It is not an unprimeable number, because it can be changed into a prime (145854211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89845 + ... + 91453.

It is an arithmetic number, because the mean of its divisors is an integer number (10368400).

Almost surely, 2^145854241 is an apocalyptic number.

145854241 is the 6973-rd octagonal number.

It is an amenable number.

145854241 is a deficient number, since it is larger than the sum of its proper divisors (20040159).

145854241 is a wasteful number, since it uses less digits than its factorization.

145854241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008.

The product of its digits is 25600, while the sum is 34.

The square root of 145854241 is about 12077.0129171083. The cubic root of 145854241 is about 526.3884529534.

The spelling of 145854241 in words is "one hundred forty-five million, eight hundred fifty-four thousand, two hundred forty-one".