145213315 has 16 divisors (see below), whose sum is σ = 191657088. Its totient is φ = 104950656.

The previous prime is 145213309. The next prime is 145213319. The reversal of 145213315 is 513312541.

It is a happy number.

145213315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145213315 - 2¹¹ = 145211267 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 145213315.

It is not an unprimeable number, because it can be changed into a prime (145213319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20712 + ... + 26821.

It is an arithmetic number, because the mean of its divisors is an integer number (11978568).

Almost surely, 2^145213315 is an apocalyptic number.

145213315 is a deficient number, since it is larger than the sum of its proper divisors (46443773).

145213315 is a wasteful number, since it uses less digits than its factorization.

145213315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47598.

The product of its digits is 1800, while the sum is 25.

The square root of 145213315 is about 12050.4487468310. The cubic root of 145213315 is about 525.6162860982.

Adding to 145213315 its reverse (513312541), we get a palindrome (658525856).

The spelling of 145213315 in words is "one hundred forty-five million, two hundred thirteen thousand, three hundred fifteen".