155480833 has 2 divisors, whose sum is σ = 155480834. Its totient is φ = 155480832.

The previous prime is 155480789. The next prime is 155480839. The reversal of 155480833 is 338084551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120824064 + 34656769 = 10992^2 + 5887^2 .

It is a cyclic number.

It is not a de Polignac number, because 155480833 - 2¹³ = 155472641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 155480792 and 155480801.

It is not a weakly prime, because it can be changed into another prime (155480839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77740416 + 77740417.

It is an arithmetic number, because the mean of its divisors is an integer number (77740417).

Almost surely, 2^155480833 is an apocalyptic number.

It is an amenable number.

155480833 is a deficient number, since it is larger than the sum of its proper divisors (1).

155480833 is an equidigital number, since it uses as much as digits as its factorization.

155480833 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 155480833 is about 12469.1953629735. The cubic root of 155480833 is about 537.7234209457.

The spelling of 155480833 in words is "one hundred fifty-five million, four hundred eighty thousand, eight hundred thirty-three".