150898409 has 16 divisors (see below), whose sum is σ = 164883600. Its totient is φ = 137533440.

The previous prime is 150898403. The next prime is 150898457. The reversal of 150898409 is 904898051.

It can be written as a sum of positive squares in 8 ways, for example, as 222784 + 150675625 = 472^2 + 12275^2 .

It is a cyclic number.

It is not a de Polignac number, because 150898409 - 2⁴ = 150898393 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150898409.

It is not an unprimeable number, because it can be changed into a prime (150898403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103127 + ... + 104579.

It is an arithmetic number, because the mean of its divisors is an integer number (10305225).

Almost surely, 2^150898409 is an apocalyptic number.

It is an amenable number.

150898409 is a deficient number, since it is larger than the sum of its proper divisors (13985191).

150898409 is a wasteful number, since it uses less digits than its factorization.

150898409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 103680, while the sum is 44.

The square root of 150898409 is about 12284.0713527723. The cubic root of 150898409 is about 532.3879538256.

The spelling of 150898409 in words is "one hundred fifty million, eight hundred ninety-eight thousand, four hundred nine".