1551464 has 32 divisors (see below), whose sum is σ = 3132000. Its totient is φ = 718272.

The previous prime is 1551463. The next prime is 1551467. The reversal of 1551464 is 4641551.

It is not an unprimeable number, because it can be changed into a prime (1551463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8882 + ... + 9054.

It is an arithmetic number, because the mean of its divisors is an integer number (97875).

2^1551464 is an apocalyptic number.

It is an amenable number.

1551464 is an abundant number, since it is smaller than the sum of its proper divisors (1580536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1551464 is a wasteful number, since it uses less digits than its factorization.

1551464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257 (or 253 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1551464 is about 1245.5777775795. The cubic root of 1551464 is about 115.7658773724.

The spelling of 1551464 in words is "one million, five hundred fifty-one thousand, four hundred sixty-four".