155853419 has 2 divisors, whose sum is σ = 155853420. Its totient is φ = 155853418.

The previous prime is 155853391. The next prime is 155853427. The reversal of 155853419 is 914358551.

It is a strong prime.

It is an emirp because it is prime and its reverse (914358551) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 155853419 - 2²⁰ = 154804843 is a prime.

It is a super-2 number, since 2×155853419² = 48580576427979122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155853119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77926709 + 77926710.

It is an arithmetic number, because the mean of its divisors is an integer number (77926710).

Almost surely, 2^155853419 is an apocalyptic number.

155853419 is a deficient number, since it is larger than the sum of its proper divisors (1).

155853419 is an equidigital number, since it uses as much as digits as its factorization.

155853419 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 41.

The square root of 155853419 is about 12484.1266815104. The cubic root of 155853419 is about 538.1526022426.

The spelling of 155853419 in words is "one hundred fifty-five million, eight hundred fifty-three thousand, four hundred nineteen".