145702241 has 8 divisors (see below), whose sum is σ = 154231200. Its totient is φ = 137259360.

The previous prime is 145702231. The next prime is 145702243. The reversal of 145702241 is 142207541.

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

It is a cyclic number.

It is not a de Polignac number, because 145702241 - 2¹⁰ = 145701217 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 145702241.

It is not an unprimeable number, because it can be changed into a prime (145702243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18020 + ... + 24821.

It is an arithmetic number, because the mean of its divisors is an integer number (19278900).

Almost surely, 2^145702241 is an apocalyptic number.

It is an amenable number.

145702241 is a deficient number, since it is larger than the sum of its proper divisors (8528959).

145702241 is a wasteful number, since it uses less digits than its factorization.

145702241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43039.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 145702241 is about 12070.7183299090. The cubic root of 145702241 is about 526.2055332235.

Adding to 145702241 its reverse (142207541), we get a palindrome (287909782).

The spelling of 145702241 in words is "one hundred forty-five million, seven hundred two thousand, two hundred forty-one".