155484791 has 24 divisors (see below), whose sum is σ = 200589840. Its totient is φ = 119145600.

The previous prime is 155484781. The next prime is 155484829. The reversal of 155484791 is 197484551.

It is not a de Polignac number, because 155484791 - 2⁶ = 155484727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155484701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30515 + ... + 35243.

It is an arithmetic number, because the mean of its divisors is an integer number (8357910).

Almost surely, 2^155484791 is an apocalyptic number.

155484791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

155484791 is a deficient number, since it is larger than the sum of its proper divisors (45105049).

155484791 is a wasteful number, since it uses less digits than its factorization.

155484791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4815 (or 4808 counting only the distinct ones).

The product of its digits is 201600, while the sum is 44.

The square root of 155484791 is about 12469.3540730865. The cubic root of 155484791 is about 537.7279837616.

The spelling of 155484791 in words is "one hundred fifty-five million, four hundred eighty-four thousand, seven hundred ninety-one".