145485451 has 8 divisors (see below), whose sum is σ = 153253520. Its totient is φ = 137728512.

The previous prime is 145485421. The next prime is 145485467. The reversal of 145485451 is 154584541.

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 145485451 - 2¹⁷ = 145354379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145485451.

It is not an unprimeable number, because it can be changed into a prime (145485421) 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, 47791 + ... + 50743.

It is an arithmetic number, because the mean of its divisors is an integer number (19156690).

Almost surely, 2^145485451 is an apocalyptic number.

145485451 is a deficient number, since it is larger than the sum of its proper divisors (7768069).

145485451 is a wasteful number, since it uses less digits than its factorization.

145485451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565.

The product of its digits is 64000, while the sum is 37.

The square root of 145485451 is about 12061.7349912855. The cubic root of 145485451 is about 525.9444237136.

The spelling of 145485451 in words is "one hundred forty-five million, four hundred eighty-five thousand, four hundred fifty-one".