1551404012 has 12 divisors (see below), whose sum is σ = 2772722400. Its totient is φ = 759197616.

The previous prime is 1551404011. The next prime is 1551404051. The reversal of 1551404012 is 2104041551.

It is a super-2 number, since 2×1551404012² = 4813708816899392288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1551404011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4125887 + ... + 4126262.

It is an arithmetic number, because the mean of its divisors is an integer number (231060200).

Almost surely, 2^1551404012 is an apocalyptic number.

It is an amenable number.

1551404012 is a deficient number, since it is larger than the sum of its proper divisors (1221318388).

1551404012 is a wasteful number, since it uses less digits than its factorization.

1551404012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252200 (or 8252198 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1551404012 is about 39387.8663042313. The cubic root of 1551404012 is about 1157.6438530790.

Adding to 1551404012 its reverse (2104041551), we get a palindrome (3655445563).

The spelling of 1551404012 in words is "one billion, five hundred fifty-one million, four hundred four thousand, twelve".