545614381 has 16 divisors (see below), whose sum is σ = 613791360. Its totient is φ = 481521600.

The previous prime is 545614367. The next prime is 545614387. The reversal of 545614381 is 183416545.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 545614381 - 2⁷ = 545614253 is a prime.

It is a super-2 number, since 2×545614381² = 595390105508026322, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 545614381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545614387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31806 + ... + 45856.

It is an arithmetic number, because the mean of its divisors is an integer number (38361960).

Almost surely, 2^545614381 is an apocalyptic number.

It is an amenable number.

545614381 is a deficient number, since it is larger than the sum of its proper divisors (68176979).

545614381 is a wasteful number, since it uses less digits than its factorization.

545614381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14196.

The product of its digits is 57600, while the sum is 37.

The square root of 545614381 is about 23358.3899487957. The cubic root of 545614381 is about 817.1377408445.

The spelling of 545614381 in words is "five hundred forty-five million, six hundred fourteen thousand, three hundred eighty-one".