150138769 has 4 divisors (see below), whose sum is σ = 163787760. Its totient is φ = 136489780.

The previous prime is 150138763. The next prime is 150138773. The reversal of 150138769 is 967831051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 150138769 - 2¹⁹ = 149614481 is a prime.

It is a super-2 number, since 2×150138769² = 45083299913670722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150138763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6824479 + ... + 6824500.

It is an arithmetic number, because the mean of its divisors is an integer number (40946940).

Almost surely, 2^150138769 is an apocalyptic number.

It is an amenable number.

150138769 is a deficient number, since it is larger than the sum of its proper divisors (13648991).

150138769 is a wasteful number, since it uses less digits than its factorization.

150138769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13648990.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 150138769 is about 12253.1126249619. The cubic root of 150138769 is about 531.4930830536.

The spelling of 150138769 in words is "one hundred fifty million, one hundred thirty-eight thousand, seven hundred sixty-nine".