150918869 has 2 divisors, whose sum is σ = 150918870. Its totient is φ = 150918868.

The previous prime is 150918853. The next prime is 150918883. The reversal of 150918869 is 968819051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127396369 + 23522500 = 11287^2 + 4850^2 .

It is an emirp because it is prime and its reverse (968819051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150918869 - 2⁴ = 150918853 is a prime.

It is a super-2 number, since 2×150918869² = 45553010040478322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150918839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75459434 + 75459435.

It is an arithmetic number, because the mean of its divisors is an integer number (75459435).

Almost surely, 2^150918869 is an apocalyptic number.

It is an amenable number.

150918869 is a deficient number, since it is larger than the sum of its proper divisors (1).

150918869 is an equidigital number, since it uses as much as digits as its factorization.

150918869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 47.

The square root of 150918869 is about 12284.9041103299. The cubic root of 150918869 is about 532.4120145282.

The spelling of 150918869 in words is "one hundred fifty million, nine hundred eighteen thousand, eight hundred sixty-nine".