145534394 has 8 divisors (see below), whose sum is σ = 224201748. Its totient is φ = 70800480.

The previous prime is 145534391. The next prime is 145534397. The reversal of 145534394 is 493435541.

It is an interprime number because it is at equal distance from previous prime (145534391) and next prime (145534397).

It can be written as a sum of positive squares in 2 ways, for example, as 140304025 + 5230369 = 11845^2 + 2287^2 .

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

It is not an unprimeable number, because it can be changed into a prime (145534391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983267 + ... + 983414.

Almost surely, 2^145534394 is an apocalyptic number.

145534394 is a deficient number, since it is larger than the sum of its proper divisors (78667354).

145534394 is a wasteful number, since it uses less digits than its factorization.

145534394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966720.

The product of its digits is 129600, while the sum is 38.

The square root of 145534394 is about 12063.7636747410. The cubic root of 145534394 is about 526.0033950443.

The spelling of 145534394 in words is "one hundred forty-five million, five hundred thirty-four thousand, three hundred ninety-four".