1540054 has 4 divisors (see below), whose sum is σ = 2310084. Its totient is φ = 770026.

The previous prime is 1540039. The next prime is 1540073. The reversal of 1540054 is 4500451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4500451 = 113 ⋅39827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385012 + ... + 385015.

It is an arithmetic number, because the mean of its divisors is an integer number (577521).

2^1540054 is an apocalyptic number.

1540054 is a deficient number, since it is larger than the sum of its proper divisors (770030).

1540054 is an equidigital number, since it uses as much as digits as its factorization.

1540054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770029.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1540054 is about 1240.9891216284. The cubic root of 1540054 is about 115.4813847800.

The spelling of 1540054 in words is "one million, five hundred forty thousand, fifty-four".