151898987 has 2 divisors, whose sum is σ = 151898988. Its totient is φ = 151898986.

The previous prime is 151898963. The next prime is 151899037. The reversal of 151898987 is 789898151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151898987 - 2¹⁸ = 151636843 is a prime.

It is not a weakly prime, because it can be changed into another prime (151898917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75949493 + 75949494.

It is an arithmetic number, because the mean of its divisors is an integer number (75949494).

Almost surely, 2^151898987 is an apocalyptic number.

151898987 is a deficient number, since it is larger than the sum of its proper divisors (1).

151898987 is an equidigital number, since it uses as much as digits as its factorization.

151898987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 56.

The square root of 151898987 is about 12324.7307069972. The cubic root of 151898987 is about 533.5620828203.

The spelling of 151898987 in words is "one hundred fifty-one million, eight hundred ninety-eight thousand, nine hundred eighty-seven".