145217467 has 4 divisors (see below), whose sum is σ = 147678840. Its totient is φ = 142756096.

The previous prime is 145217461. The next prime is 145217477. The reversal of 145217467 is 764712541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 764712541 = 557 ⋅1372913.

It is a cyclic number.

It is not a de Polignac number, because 145217467 - 2¹¹ = 145215419 is a prime.

It is a super-2 number, since 2×145217467² = 42176225443792178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145217461) 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, 1230598 + ... + 1230715.

It is an arithmetic number, because the mean of its divisors is an integer number (36919710).

Almost surely, 2^145217467 is an apocalyptic number.

145217467 is a deficient number, since it is larger than the sum of its proper divisors (2461373).

145217467 is an equidigital number, since it uses as much as digits as its factorization.

145217467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461372.

The product of its digits is 47040, while the sum is 37.

The square root of 145217467 is about 12050.6210213416. The cubic root of 145217467 is about 525.6212955976.

The spelling of 145217467 in words is "one hundred forty-five million, two hundred seventeen thousand, four hundred sixty-seven".