2154150419 has 2 divisors, whose sum is σ = 2154150420. Its totient is φ = 2154150418.

The previous prime is 2154150409. The next prime is 2154150463. The reversal of 2154150419 is 9140514512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154150419 is a prime.

It is a super-2 number, since 2×2154150419² = 9280728055355751122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2154150409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077075209 + 1077075210.

It is an arithmetic number, because the mean of its divisors is an integer number (1077075210).

Almost surely, 2^2154150419 is an apocalyptic number.

2154150419 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154150419 is an equidigital number, since it uses as much as digits as its factorization.

2154150419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 2154150419 is about 46412.8260182463. The cubic root of 2154150419 is about 1291.4928571808.

The spelling of 2154150419 in words is "two billion, one hundred fifty-four million, one hundred fifty thousand, four hundred nineteen".