155350643 has 8 divisors (see below), whose sum is σ = 179976288. Its totient is φ = 131333184.

The previous prime is 155350639. The next prime is 155350691. The reversal of 155350643 is 346053551.

155350643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155350643 - 2² = 155350639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155350603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151496 + ... + 152517.

It is an arithmetic number, because the mean of its divisors is an integer number (22497036).

Almost surely, 2^155350643 is an apocalyptic number.

155350643 is a deficient number, since it is larger than the sum of its proper divisors (24625645).

155350643 is an equidigital number, since it uses as much as digits as its factorization.

155350643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304093.

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 155350643 is about 12463.9738045296. The cubic root of 155350643 is about 537.5732936288.

The spelling of 155350643 in words is "one hundred fifty-five million, three hundred fifty thousand, six hundred forty-three".