145134399 has 8 divisors (see below), whose sum is σ = 193715712. Its totient is φ = 96654680.

The previous prime is 145134397. The next prime is 145134401. The reversal of 145134399 is 993431541.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (145134397) and next prime (145134401).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145134399 - 2¹ = 145134397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145134391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21999 + ... + 27824.

It is an arithmetic number, because the mean of its divisors is an integer number (24214464).

Almost surely, 2^145134399 is an apocalyptic number.

145134399 is a deficient number, since it is larger than the sum of its proper divisors (48581313).

145134399 is an equidigital number, since it uses as much as digits as its factorization.

145134399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50797.

The product of its digits is 58320, while the sum is 39.

The square root of 145134399 is about 12047.1739009612. The cubic root of 145134399 is about 525.5210536670.

The spelling of 145134399 in words is "one hundred forty-five million, one hundred thirty-four thousand, three hundred ninety-nine".