545401031 has 16 divisors (see below), whose sum is σ = 634465344. Its totient is φ = 459177984.

The previous prime is 545401009. The next prime is 545401039. The reversal of 545401031 is 130104545.

It is a cyclic number.

It is not a de Polignac number, because 545401031 - 2²² = 541206727 is a prime.

It is a super-2 number, since 2×545401031² = 594924569231725922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545400988 and 545401006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545401039) 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, 129251 + ... + 133403.

It is an arithmetic number, because the mean of its divisors is an integer number (39654084).

Almost surely, 2^545401031 is an apocalyptic number.

545401031 is a deficient number, since it is larger than the sum of its proper divisors (89064313).

545401031 is a wasteful number, since it uses less digits than its factorization.

545401031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 545401031 is about 23353.8226207189. The cubic root of 545401031 is about 817.0312192966.

Adding to 545401031 its reverse (130104545), we get a palindrome (675505576).

The spelling of 545401031 in words is "five hundred forty-five million, four hundred one thousand, thirty-one".