1551402112 has 32 divisors (see below), whose sum is σ = 3328432380. Its totient is φ = 716030976.

The previous prime is 1551402091. The next prime is 1551402131. The reversal of 1551402112 is 2112041551.

It can be written as a sum of positive squares in 2 ways, for example, as 1532252736 + 19149376 = 39144^2 + 4376^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464503 + ... + 467830.

Almost surely, 2^1551402112 is an apocalyptic number.

It is an amenable number.

1551402112 is an abundant number, since it is smaller than the sum of its proper divisors (1777030268).

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

1551402112 is an equidigital number, since it uses as much as digits as its factorization.

1551402112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932360 (or 932348 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1551402112 is about 39387.8421851210. The cubic root of 1551402112 is about 1157.6433804912.

Adding to 1551402112 its reverse (2112041551), we get a palindrome (3663443663).

The spelling of 1551402112 in words is "one billion, five hundred fifty-one million, four hundred two thousand, one hundred twelve".