542406031 has 2 divisors, whose sum is σ = 542406032. Its totient is φ = 542406030.

The previous prime is 542406019. The next prime is 542406077. The reversal of 542406031 is 130604245.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542406031 is a prime.

It is a super-2 number, since 2×542406031² = 588408604930345922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 542405987 and 542406005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (542406001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271203015 + 271203016.

It is an arithmetic number, because the mean of its divisors is an integer number (271203016).

Almost surely, 2^542406031 is an apocalyptic number.

542406031 is a deficient number, since it is larger than the sum of its proper divisors (1).

542406031 is an equidigital number, since it uses as much as digits as its factorization.

542406031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 542406031 is about 23289.6120835019. The cubic root of 542406031 is about 815.5329325789.

The spelling of 542406031 in words is "five hundred forty-two million, four hundred six thousand, thirty-one".