145494745 has 8 divisors (see below), whose sum is σ = 190465920. Its totient is φ = 105814320.

The previous prime is 145494743. The next prime is 145494779. The reversal of 145494745 is 547494541.

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

It is not a de Polignac number, because 145494745 - 2¹ = 145494743 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (145494743) 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, 1322625 + ... + 1322734.

It is an arithmetic number, because the mean of its divisors is an integer number (23808240).

Almost surely, 2^145494745 is an apocalyptic number.

It is an amenable number.

145494745 is a deficient number, since it is larger than the sum of its proper divisors (44971175).

145494745 is a wasteful number, since it uses less digits than its factorization.

145494745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2645375.

The product of its digits is 403200, while the sum is 43.

The square root of 145494745 is about 12062.1202530898. The cubic root of 145494745 is about 525.9556230543.

The spelling of 145494745 in words is "one hundred forty-five million, four hundred ninety-four thousand, seven hundred forty-five".