1551384052 has 12 divisors (see below), whose sum is σ = 2723488740. Its totient is φ = 773244416.

The previous prime is 1551384049. The next prime is 1551384071. The reversal of 1551384052 is 2504831551.

It can be written as a sum of positive squares in 2 ways, for example, as 182088036 + 1369296016 = 13494^2 + 37004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1551383999 and 1551384017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610477 + ... + 613012.

It is an arithmetic number, because the mean of its divisors is an integer number (226957395).

Almost surely, 2^1551384052 is an apocalyptic number.

It is an amenable number.

1551384052 is a deficient number, since it is larger than the sum of its proper divisors (1172104688).

1551384052 is a wasteful number, since it uses less digits than its factorization.

1551384052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223810 (or 1223808 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 1551384052 is about 39387.6129258933. The cubic root of 1551384052 is about 1157.6388883997.

The spelling of 1551384052 in words is "one billion, five hundred fifty-one million, three hundred eighty-four thousand, fifty-two".