1051554406 has 24 divisors (see below), whose sum is σ = 1873902816. Its totient is φ = 441075600.

The previous prime is 1051554391. The next prime is 1051554409. The reversal of 1051554406 is 6044551501.

It is a super-2 number, since 2×1051554406² = 2211533337556025672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051554409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109545 + ... + 118756.

It is an arithmetic number, because the mean of its divisors is an integer number (78079284).

Almost surely, 2^1051554406 is an apocalyptic number.

1051554406 is a deficient number, since it is larger than the sum of its proper divisors (822348410).

1051554406 is a wasteful number, since it uses less digits than its factorization.

1051554406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228364 (or 228357 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1051554406 is about 32427.6796271334. The cubic root of 1051554406 is about 1016.8976627255.

It can be divided in two parts, 105155 and 4406, that added together give a square (109561 = 331²).

The spelling of 1051554406 in words is "one billion, fifty-one million, five hundred fifty-four thousand, four hundred six".