142402019 has 2 divisors, whose sum is σ = 142402020. Its totient is φ = 142402018.

The previous prime is 142401997. The next prime is 142402027. The reversal of 142402019 is 910204241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142402019 - 2¹² = 142397923 is a prime.

It is a super-2 number, since 2×142402019² = 40556670030552722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142401985 and 142402003.

It is not a weakly prime, because it can be changed into another prime (142402079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71201009 + 71201010.

It is an arithmetic number, because the mean of its divisors is an integer number (71201010).

Almost surely, 2^142402019 is an apocalyptic number.

142402019 is a deficient number, since it is larger than the sum of its proper divisors (1).

142402019 is an equidigital number, since it uses as much as digits as its factorization.

142402019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 142402019 is about 11933.2317081334. The cubic root of 142402019 is about 522.2022222124.

The spelling of 142402019 in words is "one hundred forty-two million, four hundred two thousand, nineteen".