149841929 has 2 divisors, whose sum is σ = 149841930. Its totient is φ = 149841928.

The previous prime is 149841851. The next prime is 149841931. The reversal of 149841929 is 929148941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146047225 + 3794704 = 12085^2 + 1948^2 .

It is a cyclic number.

It is not a de Polignac number, because 149841929 - 2⁸ = 149841673 is a prime.

Together with 149841931, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (149843929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74920964 + 74920965.

It is an arithmetic number, because the mean of its divisors is an integer number (74920965).

Almost surely, 2^149841929 is an apocalyptic number.

It is an amenable number.

149841929 is a deficient number, since it is larger than the sum of its proper divisors (1).

149841929 is an equidigital number, since it uses as much as digits as its factorization.

149841929 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 47.

The square root of 149841929 is about 12240.9937913553. The cubic root of 149841929 is about 531.1425795448.

The spelling of 149841929 in words is "one hundred forty-nine million, eight hundred forty-one thousand, nine hundred twenty-nine".