155232232 has 32 divisors (see below), whose sum is σ = 299121480. Its totient is φ = 75479040.

The previous prime is 155232179. The next prime is 155232247. The reversal of 155232232 is 232232551.

It can be written as a sum of positive squares in 4 ways, for example, as 110796676 + 44435556 = 10526^2 + 6666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 155232197 and 155232206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141478 + ... + 142570.

Almost surely, 2^155232232 is an apocalyptic number.

It is an amenable number.

155232232 is a deficient number, since it is larger than the sum of its proper divisors (143889248).

155232232 is a wasteful number, since it uses less digits than its factorization.

155232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1569 counting only the distinct ones).

The product of its digits is 3600, while the sum is 25.

The square root of 155232232 is about 12459.2227686963. Note that the first 3 decimals coincide. The cubic root of 155232232 is about 537.4366762970.

Adding to 155232232 its reverse (232232551), we get a palindrome (387464783).

It can be divided in two parts, 1552322 and 32, that multiplied together give a square (49674304 = 7048²).

The spelling of 155232232 in words is "one hundred fifty-five million, two hundred thirty-two thousand, two hundred thirty-two".