1551042422 has 16 divisors (see below), whose sum is σ = 2391187392. Its totient is φ = 754139400.

The previous prime is 1551042401. The next prime is 1551042439. The reversal of 1551042422 is 2242401551.

It is a junction number, because it is equal to n+sod(n) for n = 1551042391 and 1551042400.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20204 + ... + 59247.

It is an arithmetic number, because the mean of its divisors is an integer number (149449212).

Almost surely, 2^1551042422 is an apocalyptic number.

1551042422 is a deficient number, since it is larger than the sum of its proper divisors (840144970).

1551042422 is a wasteful number, since it uses less digits than its factorization.

1551042422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79723.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1551042422 is about 39383.2759175770. The cubic root of 1551042422 is about 1157.5539076785.

Adding to 1551042422 its reverse (2242401551), we get a palindrome (3793443973).

The spelling of 1551042422 in words is "one billion, five hundred fifty-one million, forty-two thousand, four hundred twenty-two".