151614989 has 2 divisors, whose sum is σ = 151614990. Its totient is φ = 151614988.

The previous prime is 151614979. The next prime is 151615019. The reversal of 151614989 is 989416151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145612489 + 6002500 = 12067^2 + 2450^2 .

It is an emirp because it is prime and its reverse (989416151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 151614989 - 2⁴ = 151614973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151614949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75807494 + 75807495.

It is an arithmetic number, because the mean of its divisors is an integer number (75807495).

Almost surely, 2^151614989 is an apocalyptic number.

It is an amenable number.

151614989 is a deficient number, since it is larger than the sum of its proper divisors (1).

151614989 is an equidigital number, since it uses as much as digits as its factorization.

151614989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 44.

The square root of 151614989 is about 12313.2038479025. The cubic root of 151614989 is about 533.2293505179.

The spelling of 151614989 in words is "one hundred fifty-one million, six hundred fourteen thousand, nine hundred eighty-nine".