155441793 has 32 divisors (see below), whose sum is σ = 237686400. Its totient is φ = 89565696.

The previous prime is 155441779. The next prime is 155441833. The reversal of 155441793 is 397144551.

It is not a de Polignac number, because 155441793 - 2⁹ = 155441281 is a prime.

It is a super-2 number, since 2×155441793² = 48324302022109698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (155441723) 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, 64771 + ... + 67127.

It is an arithmetic number, because the mean of its divisors is an integer number (7427700).

Almost surely, 2^155441793 is an apocalyptic number.

155441793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155441793 is a deficient number, since it is larger than the sum of its proper divisors (82244607).

155441793 is a wasteful number, since it uses less digits than its factorization.

155441793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481.

The product of its digits is 75600, while the sum is 39.

The square root of 155441793 is about 12467.6298068237. The cubic root of 155441793 is about 537.6784111542.

The spelling of 155441793 in words is "one hundred fifty-five million, four hundred forty-one thousand, seven hundred ninety-three".