150947231 has 2 divisors, whose sum is σ = 150947232. Its totient is φ = 150947230.

The previous prime is 150947201. The next prime is 150947249. The reversal of 150947231 is 132749051.

It is a strong prime.

It is an emirp because it is prime and its reverse (132749051) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150947231 is a prime.

It is a super-2 number, since 2×150947231² = 45570133093134722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150947201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75473615 + 75473616.

It is an arithmetic number, because the mean of its divisors is an integer number (75473616).

Almost surely, 2^150947231 is an apocalyptic number.

150947231 is a deficient number, since it is larger than the sum of its proper divisors (1).

150947231 is an equidigital number, since it uses as much as digits as its factorization.

150947231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 150947231 is about 12286.0583996659. The cubic root of 150947231 is about 532.4453642872.

The spelling of 150947231 in words is "one hundred fifty million, nine hundred forty-seven thousand, two hundred thirty-one".