273664545 has 64 divisors (see below), whose sum is σ = 559319040. Its totient is φ = 110937600.

The previous prime is 273664541. The next prime is 273664549. The reversal of 273664545 is 545466372.

It is an interprime number because it is at equal distance from previous prime (273664541) and next prime (273664549).

It is not a de Polignac number, because 273664545 - 2² = 273664541 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 273664497 and 273664506.

It is not an unprimeable number, because it can be changed into a prime (273664541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44466 + ... + 50244.

It is an arithmetic number, because the mean of its divisors is an integer number (8739360).

Almost surely, 2^273664545 is an apocalyptic number.

It is an amenable number.

273664545 is an abundant number, since it is smaller than the sum of its proper divisors (285654495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273664545 is a wasteful number, since it uses less digits than its factorization.

273664545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5846.

The product of its digits is 604800, while the sum is 42.

The square root of 273664545 is about 16542.8094651422. The cubic root of 273664545 is about 649.2413594813.

The spelling of 273664545 in words is "two hundred seventy-three million, six hundred sixty-four thousand, five hundred forty-five".