542122451 has 16 divisors (see below), whose sum is σ = 603697920. Its totient is φ = 483442560.

The previous prime is 542122447. The next prime is 542122453. The reversal of 542122451 is 154221245.

It is a cyclic number.

It is not a de Polignac number, because 542122451 - 2² = 542122447 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542122451.

It is not an unprimeable number, because it can be changed into a prime (542122453) 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, 446321 + ... + 447533.

It is an arithmetic number, because the mean of its divisors is an integer number (37731120).

Almost surely, 2^542122451 is an apocalyptic number.

542122451 is a deficient number, since it is larger than the sum of its proper divisors (61575469).

542122451 is a wasteful number, since it uses less digits than its factorization.

542122451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366.

The product of its digits is 3200, while the sum is 26.

The square root of 542122451 is about 23283.5231655349. The cubic root of 542122451 is about 815.3907825220.

Adding to 542122451 its reverse (154221245), we get a palindrome (696343696).

It can be divided in two parts, 5421 and 22451, that added together give a palindrome (27872).

The spelling of 542122451 in words is "five hundred forty-two million, one hundred twenty-two thousand, four hundred fifty-one".