155001479 has 2 divisors, whose sum is σ = 155001480. Its totient is φ = 155001478.

The previous prime is 155001419. The next prime is 155001499. The reversal of 155001479 is 974100551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155001479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155001419) 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, 77500739 + 77500740.

It is an arithmetic number, because the mean of its divisors is an integer number (77500740).

Almost surely, 2^155001479 is an apocalyptic number.

155001479 is a deficient number, since it is larger than the sum of its proper divisors (1).

155001479 is an equidigital number, since it uses as much as digits as its factorization.

155001479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 155001479 is about 12449.9589959164. The cubic root of 155001479 is about 537.1702440316.

The spelling of 155001479 in words is "one hundred fifty-five million, one thousand, four hundred seventy-nine".