155061503 has 2 divisors, whose sum is σ = 155061504. Its totient is φ = 155061502.

The previous prime is 155061497. The next prime is 155061509. The reversal of 155061503 is 305160551.

It is a balanced prime because it is at equal distance from previous prime (155061497) and next prime (155061509).

It is a cyclic number.

It is not a de Polignac number, because 155061503 - 2¹⁴ = 155045119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (155061509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77530751 + 77530752.

It is an arithmetic number, because the mean of its divisors is an integer number (77530752).

Almost surely, 2^155061503 is an apocalyptic number.

155061503 is a deficient number, since it is larger than the sum of its proper divisors (1).

155061503 is an equidigital number, since it uses as much as digits as its factorization.

155061503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 155061503 is about 12452.3693729346. The cubic root of 155061503 is about 537.2395744358.

The spelling of 155061503 in words is "one hundred fifty-five million, sixty-one thousand, five hundred three".