145052361 has 24 divisors (see below), whose sum is σ = 216530496. Its totient is φ = 93518880.

The previous prime is 145052339. The next prime is 145052407. The reversal of 145052361 is 163250541.

It is not a de Polignac number, because 145052361 - 2¹⁰ = 145051337 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145052561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31726 + ... + 36008.

It is an arithmetic number, because the mean of its divisors is an integer number (9022104).

Almost surely, 2^145052361 is an apocalyptic number.

It is an amenable number.

145052361 is a deficient number, since it is larger than the sum of its proper divisors (71478135).

145052361 is a wasteful number, since it uses less digits than its factorization.

145052361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413 (or 4410 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 145052361 is about 12043.7685547340. The cubic root of 145052361 is about 525.4220171365.

The spelling of 145052361 in words is "one hundred forty-five million, fifty-two thousand, three hundred sixty-one".