546149381 has 4 divisors (see below), whose sum is σ = 546267264. Its totient is φ = 546031500.

The previous prime is 546149377. The next prime is 546149393. The reversal of 546149381 is 183941645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 546149381 - 2² = 546149377 is a prime.

It is a super-2 number, since 2×546149381² = 596558292733366322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546148381) 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, 51695 + ... + 61356.

It is an arithmetic number, because the mean of its divisors is an integer number (136566816).

Almost surely, 2^546149381 is an apocalyptic number.

It is an amenable number.

546149381 is a deficient number, since it is larger than the sum of its proper divisors (117883).

546149381 is a wasteful number, since it uses less digits than its factorization.

546149381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117882.

The product of its digits is 103680, while the sum is 41.

The square root of 546149381 is about 23369.8391308113. The cubic root of 546149381 is about 817.4047339788.

The spelling of 546149381 in words is "five hundred forty-six million, one hundred forty-nine thousand, three hundred eighty-one".