154109929 has 2 divisors, whose sum is σ = 154109930. Its totient is φ = 154109928.

The previous prime is 154109911. The next prime is 154109951. The reversal of 154109929 is 929901451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121881600 + 32228329 = 11040^2 + 5677^2 .

It is a cyclic number.

It is not a de Polignac number, because 154109929 - 2²³ = 145721321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 154109891 and 154109900.

It is not a weakly prime, because it can be changed into another prime (154109909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77054964 + 77054965.

It is an arithmetic number, because the mean of its divisors is an integer number (77054965).

Almost surely, 2^154109929 is an apocalyptic number.

It is an amenable number.

154109929 is a deficient number, since it is larger than the sum of its proper divisors (1).

154109929 is an equidigital number, since it uses as much as digits as its factorization.

154109929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 154109929 is about 12414.1020214915. The cubic root of 154109929 is about 536.1383500165.

The spelling of 154109929 in words is "one hundred fifty-four million, one hundred nine thousand, nine hundred twenty-nine".