155254147 has 2 divisors, whose sum is σ = 155254148. Its totient is φ = 155254146.

The previous prime is 155254103. The next prime is 155254171. The reversal of 155254147 is 741452551.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 155254147 - 2²³ = 146865539 is a prime.

It is not a weakly prime, because it can be changed into another prime (155254247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77627073 + 77627074.

It is an arithmetic number, because the mean of its divisors is an integer number (77627074).

Almost surely, 2^155254147 is an apocalyptic number.

155254147 is a deficient number, since it is larger than the sum of its proper divisors (1).

155254147 is an equidigital number, since it uses as much as digits as its factorization.

155254147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The square root of 155254147 is about 12460.1022066434. The cubic root of 155254147 is about 537.4619660847.

The spelling of 155254147 in words is "one hundred fifty-five million, two hundred fifty-four thousand, one hundred forty-seven".