155459798 has 32 divisors (see below), whose sum is σ = 266807520. Its totient is φ = 67299840.

The previous prime is 155459797. The next prime is 155459813. The reversal of 155459798 is 897954551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155459797) 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, 224633 + ... + 225323.

It is an arithmetic number, because the mean of its divisors is an integer number (8337735).

Almost surely, 2^155459798 is an apocalyptic number.

155459798 is a deficient number, since it is larger than the sum of its proper divisors (111347722).

155459798 is a wasteful number, since it uses less digits than its factorization.

155459798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232.

The product of its digits is 2268000, while the sum is 53.

The square root of 155459798 is about 12468.3518557987. The cubic root of 155459798 is about 537.6991703204.

The spelling of 155459798 in words is "one hundred fifty-five million, four hundred fifty-nine thousand, seven hundred ninety-eight".