1621054 has 8 divisors (see below), whose sum is σ = 2444400. Its totient is φ = 806256.

The previous prime is 1621049. The next prime is 1621079. The reversal of 1621054 is 4501261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639 + ... + 2434.

It is an arithmetic number, because the mean of its divisors is an integer number (305550).

2^1621054 is an apocalyptic number.

1621054 is a deficient number, since it is larger than the sum of its proper divisors (823346).

1621054 is a wasteful number, since it uses less digits than its factorization.

1621054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1621054 is about 1273.2061891147. The cubic root of 1621054 is about 117.4714945187.

It can be divided in two parts, 1 and 621054, that added together give a triangular number (621055 = T₁₁₁₄).

The spelling of 1621054 in words is "one million, six hundred twenty-one thousand, fifty-four".