145418547 has 8 divisors (see below), whose sum is σ = 199131856. Its totient is φ = 94325472.

The previous prime is 145418543. The next prime is 145418563. The reversal of 145418547 is 745814541.

145418547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 145418547 - 2² = 145418543 is a prime.

It is a super-2 number, since 2×145418547² = 42293107623182418, which contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145418543) 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, 654928 + ... + 655149.

It is an arithmetic number, because the mean of its divisors is an integer number (24891482).

Almost surely, 2^145418547 is an apocalyptic number.

145418547 is a deficient number, since it is larger than the sum of its proper divisors (53713309).

145418547 is a wasteful number, since it uses less digits than its factorization.

145418547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310117.

The product of its digits is 89600, while the sum is 39.

The square root of 145418547 is about 12058.9612736753. The cubic root of 145418547 is about 525.8637898065.

The spelling of 145418547 in words is "one hundred forty-five million, four hundred eighteen thousand, five hundred forty-seven".