155230788 has 12 divisors (see below), whose sum is σ = 362205200. Its totient is φ = 51743592.

The previous prime is 155230783. The next prime is 155230807. The reversal of 155230788 is 887032551.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (155230783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6467938 + ... + 6467961.

Almost surely, 2^155230788 is an apocalyptic number.

It is an amenable number.

155230788 is an abundant number, since it is smaller than the sum of its proper divisors (206974412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155230788 is a wasteful number, since it uses less digits than its factorization.

155230788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12935906 (or 12935904 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 155230788 is about 12459.1648195214. The cubic root of 155230788 is about 537.4350098455.

The spelling of 155230788 in words is "one hundred fifty-five million, two hundred thirty thousand, seven hundred eighty-eight".