150881531 has 2 divisors, whose sum is σ = 150881532. Its totient is φ = 150881530.

The previous prime is 150881509. The next prime is 150881537. The reversal of 150881531 is 135188051.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (135188051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150881531 - 2¹⁴ = 150865147 is a prime.

It is a super-2 number, since 2×150881531² = 45530472793807922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (150881537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75440765 + 75440766.

It is an arithmetic number, because the mean of its divisors is an integer number (75440766).

Almost surely, 2^150881531 is an apocalyptic number.

150881531 is a deficient number, since it is larger than the sum of its proper divisors (1).

150881531 is an equidigital number, since it uses as much as digits as its factorization.

150881531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 150881531 is about 12283.3843463436. The cubic root of 150881531 is about 532.3681038727.

The spelling of 150881531 in words is "one hundred fifty million, eight hundred eighty-one thousand, five hundred thirty-one".