149926831 has 2 divisors, whose sum is σ = 149926832. Its totient is φ = 149926830.

The previous prime is 149926813. The next prime is 149926867. The reversal of 149926831 is 138629941.

It is a happy number.

Together with previous prime (149926813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149926831 - 2²¹ = 147829679 is a prime.

It is a super-2 number, since 2×149926831² = 44956109307405122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149926031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74963415 + 74963416.

It is an arithmetic number, because the mean of its divisors is an integer number (74963416).

Almost surely, 2^149926831 is an apocalyptic number.

149926831 is a deficient number, since it is larger than the sum of its proper divisors (1).

149926831 is an equidigital number, since it uses as much as digits as its factorization.

149926831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 43.

The square root of 149926831 is about 12244.4612376372. The cubic root of 149926831 is about 531.2428775793.

The spelling of 149926831 in words is "one hundred forty-nine million, nine hundred twenty-six thousand, eight hundred thirty-one".