1288388053 has 4 divisors (see below), whose sum is σ = 1289629120. Its totient is φ = 1287146988.

The previous prime is 1288388051. The next prime is 1288388069. The reversal of 1288388053 is 3508838821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3508838821 = 8363 ⋅419567.

It is a cyclic number.

It is not a de Polignac number, because 1288388053 - 2¹ = 1288388051 is a prime.

It is a super-2 number, since 2×1288388053² = 3319887550226261618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1288387994 and 1288388012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288388051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 618975 + ... + 621052.

It is an arithmetic number, because the mean of its divisors is an integer number (322407280).

Almost surely, 2^1288388053 is an apocalyptic number.

It is an amenable number.

1288388053 is a deficient number, since it is larger than the sum of its proper divisors (1241067).

1288388053 is a wasteful number, since it uses less digits than its factorization.

1288388053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241066.

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 1288388053 is about 35894.1228197598. The cubic root of 1288388053 is about 1088.1336219992.

The spelling of 1288388053 in words is "one billion, two hundred eighty-eight million, three hundred eighty-eight thousand, fifty-three".