1421842151 has 2 divisors, whose sum is σ = 1421842152. Its totient is φ = 1421842150.

The previous prime is 1421842133. The next prime is 1421842159. The reversal of 1421842151 is 1512481241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1421842151 - 2⁶ = 1421842087 is a prime.

It is a super-3 number, since 3×1421842151³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421842159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710921075 + 710921076.

It is an arithmetic number, because the mean of its divisors is an integer number (710921076).

Almost surely, 2^1421842151 is an apocalyptic number.

1421842151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421842151 is an equidigital number, since it uses as much as digits as its factorization.

1421842151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2560, while the sum is 29.

The square root of 1421842151 is about 37707.3222464815. The cubic root of 1421842151 is about 1124.4767017428.

The spelling of 1421842151 in words is "one billion, four hundred twenty-one million, eight hundred forty-two thousand, one hundred fifty-one".