215142419 has 2 divisors, whose sum is σ = 215142420. Its totient is φ = 215142418.

The previous prime is 215142413. The next prime is 215142451. The reversal of 215142419 is 914241512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 215142419 - 2⁸ = 215142163 is a prime.

It is a super-2 number, since 2×215142419² = 92572520906343122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 215142391 and 215142400.

It is not a weakly prime, because it can be changed into another prime (215142413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107571209 + 107571210.

It is an arithmetic number, because the mean of its divisors is an integer number (107571210).

Almost surely, 2^215142419 is an apocalyptic number.

215142419 is a deficient number, since it is larger than the sum of its proper divisors (1).

215142419 is an equidigital number, since it uses as much as digits as its factorization.

215142419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 215142419 is about 14667.7339422284. The cubic root of 215142419 is about 599.2048903183.

The spelling of 215142419 in words is "two hundred fifteen million, one hundred forty-two thousand, four hundred nineteen".