150531631 has 2 divisors, whose sum is σ = 150531632. Its totient is φ = 150531630.

The previous prime is 150531613. The next prime is 150531637. The reversal of 150531631 is 136135051.

Together with previous prime (150531613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 150531631 - 2⁹ = 150531119 is a prime.

It is a super-2 number, since 2×150531631² = 45319543863040322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 150531596 and 150531605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (150531637) 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, 75265815 + 75265816.

It is an arithmetic number, because the mean of its divisors is an integer number (75265816).

Almost surely, 2^150531631 is an apocalyptic number.

150531631 is a deficient number, since it is larger than the sum of its proper divisors (1).

150531631 is an equidigital number, since it uses as much as digits as its factorization.

150531631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 150531631 is about 12269.1332619709. The cubic root of 150531631 is about 531.9562580634.

Adding to 150531631 its reverse (136135051), we get a palindrome (286666682).

The spelling of 150531631 in words is "one hundred fifty million, five hundred thirty-one thousand, six hundred thirty-one".