155343043 has 2 divisors, whose sum is σ = 155343044. Its totient is φ = 155343042.

The previous prime is 155342969. The next prime is 155343091. The reversal of 155343043 is 340343551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155343043 is a prime.

It is a super-2 number, since 2×155343043² = 48262922016999698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (155343143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77671521 + 77671522.

It is an arithmetic number, because the mean of its divisors is an integer number (77671522).

Almost surely, 2^155343043 is an apocalyptic number.

155343043 is a deficient number, since it is larger than the sum of its proper divisors (1).

155343043 is an equidigital number, since it uses as much as digits as its factorization.

155343043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 155343043 is about 12463.6689221112. The cubic root of 155343043 is about 537.5645271729.

Adding to 155343043 its reverse (340343551), we get a palindrome (495686594).

The spelling of 155343043 in words is "one hundred fifty-five million, three hundred forty-three thousand, forty-three".