155451043 has 32 divisors (see below), whose sum is σ = 191600640. Its totient is φ = 124354560.

The previous prime is 155451031. The next prime is 155451071. The reversal of 155451043 is 340154551.

It is not a de Polignac number, because 155451043 - 2⁹ = 155450531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155451083) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201763 + ... + 202531.

It is an arithmetic number, because the mean of its divisors is an integer number (5987520).

Almost surely, 2^155451043 is an apocalyptic number.

155451043 is a deficient number, since it is larger than the sum of its proper divisors (36149597).

155451043 is a wasteful number, since it uses less digits than its factorization.

155451043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 155451043 is about 12468.0007619506. Note that the first 3 decimals coincide. The cubic root of 155451043 is about 537.6890762968.

The spelling of 155451043 in words is "one hundred fifty-five million, four hundred fifty-one thousand, forty-three".