1551145232 has 40 divisors (see below), whose sum is σ = 3698888256. Its totient is φ = 613639296.

The previous prime is 1551145213. The next prime is 1551145241. The reversal of 1551145232 is 2325411551.

It is a junction number, because it is equal to n+sod(n) for n = 1551145195 and 1551145204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531218 + ... + 534129.

Almost surely, 2^1551145232 is an apocalyptic number.

It is an amenable number.

1551145232 is an abundant number, since it is smaller than the sum of its proper divisors (2147743024).

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

1551145232 is a wasteful number, since it uses less digits than its factorization.

1551145232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065375 (or 1065369 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 1551145232 is about 39384.5811454178. The cubic root of 1551145232 is about 1157.5794830563.

Adding to 1551145232 its reverse (2325411551), we get a palindrome (3876556783).

The spelling of 1551145232 in words is "one billion, five hundred fifty-one million, one hundred forty-five thousand, two hundred thirty-two".