149841751 has 2 divisors, whose sum is σ = 149841752. Its totient is φ = 149841750.

The previous prime is 149841743. The next prime is 149841761. The reversal of 149841751 is 157148941.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 149841751 - 2³ = 149841743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149841721) 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, 74920875 + 74920876.

It is an arithmetic number, because the mean of its divisors is an integer number (74920876).

Almost surely, 2^149841751 is an apocalyptic number.

149841751 is a deficient number, since it is larger than the sum of its proper divisors (1).

149841751 is an equidigital number, since it uses as much as digits as its factorization.

149841751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 40.

The square root of 149841751 is about 12240.9865207017. The cubic root of 149841751 is about 531.1423692267.

The spelling of 149841751 in words is "one hundred forty-nine million, eight hundred forty-one thousand, seven hundred fifty-one".