145074545 has 24 divisors (see below), whose sum is σ = 220926528. Its totient is φ = 90434400.

The previous prime is 145074499. The next prime is 145074551. The reversal of 145074545 is 545470541.

It is a de Polignac number, because none of the positive numbers 2^k-145074545 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24221 + ... + 29610.

It is an arithmetic number, because the mean of its divisors is an integer number (9205272).

Almost surely, 2^145074545 is an apocalyptic number.

It is an amenable number.

145074545 is a deficient number, since it is larger than the sum of its proper divisors (75851983).

145074545 is a wasteful number, since it uses less digits than its factorization.

145074545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53861 (or 53854 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 35.

The square root of 145074545 is about 12044.6894937146. The cubic root of 145074545 is about 525.4488014136.

The spelling of 145074545 in words is "one hundred forty-five million, seventy-four thousand, five hundred forty-five".