150135261 has 4 divisors (see below), whose sum is σ = 200180352. Its totient is φ = 100090172.

The previous prime is 150135241. The next prime is 150135269. The reversal of 150135261 is 162531051.

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 150135261 - 2⁶ = 150135197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150135269) 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, 25022541 + ... + 25022546.

It is an arithmetic number, because the mean of its divisors is an integer number (50045088).

Almost surely, 2^150135261 is an apocalyptic number.

It is an amenable number.

150135261 is a deficient number, since it is larger than the sum of its proper divisors (50045091).

150135261 is an equidigital number, since it uses as much as digits as its factorization.

150135261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50045090.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 150135261 is about 12252.9694768248. The cubic root of 150135261 is about 531.4889435670.

The spelling of 150135261 in words is "one hundred fifty million, one hundred thirty-five thousand, two hundred sixty-one".