545406542 has 4 divisors (see below), whose sum is σ = 818109816. Its totient is φ = 272703270.

The previous prime is 545406493. The next prime is 545406553. The reversal of 545406542 is 245604545.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136351634 + ... + 136351637.

It is an arithmetic number, because the mean of its divisors is an integer number (204527454).

Almost surely, 2^545406542 is an apocalyptic number.

545406542 is a deficient number, since it is larger than the sum of its proper divisors (272703274).

545406542 is a wasteful number, since it uses less digits than its factorization.

545406542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272703273.

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 545406542 is about 23353.9406096701. The cubic root of 545406542 is about 817.0339711822.

The spelling of 545406542 in words is "five hundred forty-five million, four hundred six thousand, five hundred forty-two".