150939769 has 2 divisors, whose sum is σ = 150939770. Its totient is φ = 150939768.

The previous prime is 150939739. The next prime is 150939779. The reversal of 150939769 is 967939051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 81000000 + 69939769 = 9000^2 + 8363^2 .

It is an emirp because it is prime and its reverse (967939051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150939769 - 2¹³ = 150931577 is a prime.

It is a super-2 number, since 2×150939769² = 45565627731546722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150939739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75469884 + 75469885.

It is an arithmetic number, because the mean of its divisors is an integer number (75469885).

Almost surely, 2^150939769 is an apocalyptic number.

It is an amenable number.

150939769 is a deficient number, since it is larger than the sum of its proper divisors (1).

150939769 is an equidigital number, since it uses as much as digits as its factorization.

150939769 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 459270, while the sum is 49.

The square root of 150939769 is about 12285.7547183720. The cubic root of 150939769 is about 532.4365904203.

The spelling of 150939769 in words is "one hundred fifty million, nine hundred thirty-nine thousand, seven hundred sixty-nine".