149931029 has 2 divisors, whose sum is σ = 149931030. Its totient is φ = 149931028.

The previous prime is 149931017. The next prime is 149931031. The reversal of 149931029 is 920139941.

149931029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85562500 + 64368529 = 9250^2 + 8023^2 .

It is a cyclic number.

It is not a de Polignac number, because 149931029 - 2²⁰ = 148882453 is a prime.

Together with 149931031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 149930983 and 149931001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149931049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74965514 + 74965515.

It is an arithmetic number, because the mean of its divisors is an integer number (74965515).

Almost surely, 2^149931029 is an apocalyptic number.

It is an amenable number.

149931029 is a deficient number, since it is larger than the sum of its proper divisors (1).

149931029 is an equidigital number, since it uses as much as digits as its factorization.

149931029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 149931029 is about 12244.6326608845. The cubic root of 149931029 is about 531.2478358574.

The spelling of 149931029 in words is "one hundred forty-nine million, nine hundred thirty-one thousand, twenty-nine".