151388989 has 2 divisors, whose sum is σ = 151388990. Its totient is φ = 151388988.

The previous prime is 151388987. The next prime is 151389037. The reversal of 151388989 is 989883151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130759225 + 20629764 = 11435^2 + 4542^2 .

It is a cyclic number.

It is not a de Polignac number, because 151388989 - 2¹ = 151388987 is a prime.

Together with 151388987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151388983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75694494 + 75694495.

It is an arithmetic number, because the mean of its divisors is an integer number (75694495).

Almost surely, 2^151388989 is an apocalyptic number.

It is an amenable number.

151388989 is a deficient number, since it is larger than the sum of its proper divisors (1).

151388989 is an equidigital number, since it uses as much as digits as its factorization.

151388989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 52.

The square root of 151388989 is about 12304.0232850885. The cubic root of 151388989 is about 532.9642717117.

The spelling of 151388989 in words is "one hundred fifty-one million, three hundred eighty-eight thousand, nine hundred eighty-nine".