145162241 has 4 divisors (see below), whose sum is σ = 165899712. Its totient is φ = 124424772.

The previous prime is 145162183. The next prime is 145162289. The reversal of 145162241 is 142261541.

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.

It is a cyclic number.

It is not a de Polignac number, because 145162241 - 2¹⁰ = 145161217 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 145162241.

It is not an unprimeable number, because it can be changed into a prime (145162291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10368725 + ... + 10368738.

It is an arithmetic number, because the mean of its divisors is an integer number (41474928).

It is a Proth number, since it is equal to 2215 ⋅ 2¹⁶ + 1 and 2215 < 2¹⁶.

Almost surely, 2^145162241 is an apocalyptic number.

It is an amenable number.

145162241 is a deficient number, since it is larger than the sum of its proper divisors (20737471).

145162241 is an equidigital number, since it uses as much as digits as its factorization.

145162241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20737470.

The product of its digits is 1920, while the sum is 26.

The square root of 145162241 is about 12048.3293862676. The cubic root of 145162241 is about 525.5546561342.

The spelling of 145162241 in words is "one hundred forty-five million, one hundred sixty-two thousand, two hundred forty-one".