155361043 has 12 divisors (see below), whose sum is σ = 164470080. Its totient is φ = 146734416.

The previous prime is 155361023. The next prime is 155361049. The reversal of 155361043 is 340163551.

It is a de Polignac number, because none of the positive numbers 2^k-155361043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155361049) 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 in 11 ways as a sum of consecutive naturals, for example, 218773 + ... + 219481.

It is an arithmetic number, because the mean of its divisors is an integer number (13705840).

Almost surely, 2^155361043 is an apocalyptic number.

155361043 is a deficient number, since it is larger than the sum of its proper divisors (9109037).

155361043 is an equidigital number, since it uses as much as digits as its factorization.

155361043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1335 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 155361043 is about 12464.3909999647. The cubic root of 155361043 is about 537.5852893682.

The spelling of 155361043 in words is "one hundred fifty-five million, three hundred sixty-one thousand, forty-three".