155602643 has 16 divisors (see below), whose sum is σ = 181488384. Its totient is φ = 130649760.

The previous prime is 155602633. The next prime is 155602651. The reversal of 155602643 is 346206551.

155602643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 155602643 - 2⁴ = 155602627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155602633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130496 + ... + 131682.

It is an arithmetic number, because the mean of its divisors is an integer number (11343024).

Almost surely, 2^155602643 is an apocalyptic number.

155602643 is a deficient number, since it is larger than the sum of its proper divisors (25885741).

155602643 is a wasteful number, since it uses less digits than its factorization.

155602643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 155602643 is about 12474.0788437463. The cubic root of 155602643 is about 537.8638090801.

The spelling of 155602643 in words is "one hundred fifty-five million, six hundred two thousand, six hundred forty-three".