42708451 has 2 divisors, whose sum is σ = 42708452. Its totient is φ = 42708450.

The previous prime is 42708377. The next prime is 42708469. The reversal of 42708451 is 15480724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42708451 - 2²³ = 34319843 is a prime.

It is not a weakly prime, because it can be changed into another prime (42708481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21354225 + 21354226.

It is an arithmetic number, because the mean of its divisors is an integer number (21354226).

Almost surely, 2^42708451 is an apocalyptic number.

42708451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42708451 is an equidigital number, since it uses as much as digits as its factorization.

42708451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 42708451 is about 6535.1703114762. The cubic root of 42708451 is about 349.5462173573.

It can be divided in two parts, 4270 and 8451, that added together give a palindrome (12721).

The spelling of 42708451 in words is "forty-two million, seven hundred eight thousand, four hundred fifty-one".