155598345 has 48 divisors (see below), whose sum is σ = 309429120. Its totient is φ = 70854912.

The previous prime is 155598319. The next prime is 155598349. The reversal of 155598345 is 543895551.

155598345 is a `hidden beast` number, since 1 + 55 + 598 + 3 + 4 + 5 = 666.

It is not a de Polignac number, because 155598345 - 2¹³ = 155590153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 155598345.

It is not an unprimeable number, because it can be changed into a prime (155598349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95901 + ... + 97509.

It is an arithmetic number, because the mean of its divisors is an integer number (6446440).

Almost surely, 2^155598345 is an apocalyptic number.

155598345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155598345 is a deficient number, since it is larger than the sum of its proper divisors (153830775).

155598345 is a wasteful number, since it uses less digits than its factorization.

155598345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1931 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The square root of 155598345 is about 12473.9065653066. The cubic root of 155598345 is about 537.8588568078.

The spelling of 155598345 in words is "one hundred fifty-five million, five hundred ninety-eight thousand, three hundred forty-five".