1421589151 has 2 divisors, whose sum is σ = 1421589152. Its totient is φ = 1421589150.

The previous prime is 1421589149. The next prime is 1421589157. The reversal of 1421589151 is 1519851241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421589151 - 2¹ = 1421589149 is a prime.

Together with 1421589149, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1421589151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421589157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710794575 + 710794576.

It is an arithmetic number, because the mean of its divisors is an integer number (710794576).

Almost surely, 2^1421589151 is an apocalyptic number.

1421589151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421589151 is an equidigital number, since it uses as much as digits as its factorization.

1421589151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 37.

The square root of 1421589151 is about 37703.9673111464. The cubic root of 1421589151 is about 1124.4100020085.

The spelling of 1421589151 in words is "one billion, four hundred twenty-one million, five hundred eighty-nine thousand, one hundred fifty-one".