145814387 has 2 divisors, whose sum is σ = 145814388. Its totient is φ = 145814386.

The previous prime is 145814369. The next prime is 145814413. The reversal of 145814387 is 783418541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145814387 - 2¹⁶ = 145748851 is a prime.

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

It is not a weakly prime, because it can be changed into another prime (145814587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72907193 + 72907194.

It is an arithmetic number, because the mean of its divisors is an integer number (72907194).

Almost surely, 2^145814387 is an apocalyptic number.

145814387 is a deficient number, since it is larger than the sum of its proper divisors (1).

145814387 is an equidigital number, since it uses as much as digits as its factorization.

145814387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 41.

The square root of 145814387 is about 12075.3628102844. The cubic root of 145814387 is about 526.3405041786.

The spelling of 145814387 in words is "one hundred forty-five million, eight hundred fourteen thousand, three hundred eighty-seven".