2155351234132 has 24 divisors (see below), whose sum is σ = 3778451191592. Its totient is φ = 1075794048000.

The previous prime is 2155351234123. The next prime is 2155351234181. The reversal of 2155351234132 is 2314321535512.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 16257780036 + 2139093454096 = 127506^2 + 1462564^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2155351234091 and 2155351234100.

It is a congruent number.

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, 36927532 + ... + 36985852.

Almost surely, 2^{2155351234132} is an apocalyptic number.

It is an amenable number.

2155351234132 is a deficient number, since it is larger than the sum of its proper divisors (1623099957460).

2155351234132 is a wasteful number, since it uses less digits than its factorization.

2155351234132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74299 (or 74297 counting only the distinct ones).

The product of its digits is 108000, while the sum is 37.

Adding to 2155351234132 its reverse (2314321535512), we get a palindrome (4469672769644).

The spelling of 2155351234132 in words is "two trillion, one hundred fifty-five billion, three hundred fifty-one million, two hundred thirty-four thousand, one hundred thirty-two".