155434983 has 16 divisors (see below), whose sum is σ = 233884800. Its totient is φ = 90954080.

The previous prime is 155434963. The next prime is 155434997. The reversal of 155434983 is 389434551.

It is a cyclic number.

It is not a de Polignac number, because 155434983 - 2¹⁸ = 155172839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155434933) 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, 80253 + ... + 82166.

It is an arithmetic number, because the mean of its divisors is an integer number (14617800).

Almost surely, 2^155434983 is an apocalyptic number.

155434983 is a deficient number, since it is larger than the sum of its proper divisors (78449817).

155434983 is a wasteful number, since it uses less digits than its factorization.

155434983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162462.

The product of its digits is 259200, while the sum is 42.

The square root of 155434983 is about 12467.3566965897. The cubic root of 155434983 is about 537.6705590329.

The spelling of 155434983 in words is "one hundred fifty-five million, four hundred thirty-four thousand, nine hundred eighty-three".