242151419 has 2 divisors, whose sum is σ = 242151420. Its totient is φ = 242151418.

The previous prime is 242151397. The next prime is 242151443. The reversal of 242151419 is 914151242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242151419 is a prime.

It is a super-2 number, since 2×242151419² = 117274619447427122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242151391 and 242151400.

It is not a weakly prime, because it can be changed into another prime (242151499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121075709 + 121075710.

It is an arithmetic number, because the mean of its divisors is an integer number (121075710).

Almost surely, 2^242151419 is an apocalyptic number.

242151419 is a deficient number, since it is larger than the sum of its proper divisors (1).

242151419 is an equidigital number, since it uses as much as digits as its factorization.

242151419 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 242151419 is about 15561.2152160427. The cubic root of 242151419 is about 623.2979130613.

The spelling of 242151419 in words is "two hundred forty-two million, one hundred fifty-one thousand, four hundred nineteen".