150420019 has 2 divisors, whose sum is σ = 150420020. Its totient is φ = 150420018.

The previous prime is 150419999. The next prime is 150420041. The reversal of 150420019 is 910024051.

It is an a-pointer prime, because the next prime (150420041) can be obtained adding 150420019 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 150420019 - 2²⁵ = 116865587 is a prime.

It is a super-2 number, since 2×150420019² = 45252364231920722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150420089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75210009 + 75210010.

It is an arithmetic number, because the mean of its divisors is an integer number (75210010).

Almost surely, 2^150420019 is an apocalyptic number.

150420019 is a deficient number, since it is larger than the sum of its proper divisors (1).

150420019 is an equidigital number, since it uses as much as digits as its factorization.

150420019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 150420019 is about 12264.5839309778. The cubic root of 150420019 is about 531.8247521875.

The spelling of 150420019 in words is "one hundred fifty million, four hundred twenty thousand, nineteen".