145015245 has 32 divisors (see below), whose sum is σ = 260332800. Its totient is φ = 76583232.

The previous prime is 145015229. The next prime is 145015249. The reversal of 145015245 is 542510541.

It is not a de Polignac number, because 145015245 - 2⁴ = 145015229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145015249) 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, 8691 + ... + 19119.

It is an arithmetic number, because the mean of its divisors is an integer number (8135400).

Almost surely, 2^145015245 is an apocalyptic number.

145015245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145015245 is a deficient number, since it is larger than the sum of its proper divisors (115317555).

145015245 is a wasteful number, since it uses less digits than its factorization.

145015245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10546 (or 10540 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 145015245 is about 12042.2275763249. The cubic root of 145015245 is about 525.3771983161.

Adding to 145015245 its reverse (542510541), we get a palindrome (687525786).

The spelling of 145015245 in words is "one hundred forty-five million, fifteen thousand, two hundred forty-five".