1551051 has 24 divisors (see below), whose sum is σ = 2396160. Its totient is φ = 964656.

The previous prime is 1551049. The next prime is 1551083. The reversal of 1551051 is 1501551.

It is not a de Polignac number, because 1551051 - 2¹ = 1551049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1551001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12150 + ... + 12276.

It is an arithmetic number, because the mean of its divisors is an integer number (99840).

2^1551051 is an apocalyptic number.

1551051 is a deficient number, since it is larger than the sum of its proper divisors (845109).

1551051 is a wasteful number, since it uses less digits than its factorization.

1551051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 212 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 1551051 is about 1245.4119800291. The cubic root of 1551051 is about 115.7556041615.

The spelling of 1551051 in words is "one million, five hundred fifty-one thousand, fifty-one".