145541445 has 32 divisors (see below), whose sum is σ = 271164672. Its totient is φ = 65275392.

The previous prime is 145541441. The next prime is 145541449. The reversal of 145541445 is 544145541.

It is an interprime number because it is at equal distance from previous prime (145541441) and next prime (145541449).

It is not a de Polignac number, because 145541445 - 2² = 145541441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145541441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7512 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (8473896).

Almost surely, 2^145541445 is an apocalyptic number.

145541445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145541445 is a deficient number, since it is larger than the sum of its proper divisors (125623227).

145541445 is a wasteful number, since it uses less digits than its factorization.

145541445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221.

The product of its digits is 32000, while the sum is 33.

The square root of 145541445 is about 12064.0559100163. The cubic root of 145541445 is about 526.0118896916.

Adding to 145541445 its reverse (544145541), we get a palindrome (689686986).

The spelling of 145541445 in words is "one hundred forty-five million, five hundred forty-one thousand, four hundred forty-five".