151264989 has 10 divisors (see below), whose sum is σ = 225963870. Its totient is φ = 100843272.

The previous prime is 151264987. The next prime is 151264999. The reversal of 151264989 is 989462151.

151264989 is a `hidden beast` number, since 151 + 2 + 6 + 498 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 87104889 + 64160100 = 9333^2 + 8010^2 .

It is not a de Polignac number, because 151264989 - 2¹ = 151264987 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151264987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 933654 + ... + 933815.

It is an arithmetic number, because the mean of its divisors is an integer number (22596387).

Almost surely, 2^151264989 is an apocalyptic number.

It is an amenable number.

151264989 is a deficient number, since it is larger than the sum of its proper divisors (74698881).

151264989 is an equidigital number, since it uses as much as digits as its factorization.

151264989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867481 (or 1867472 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 151264989 is about 12298.9832506594. The cubic root of 151264989 is about 532.8187181457.

The spelling of 151264989 in words is "one hundred fifty-one million, two hundred sixty-four thousand, nine hundred eighty-nine".