1542723 has 16 divisors (see below), whose sum is σ = 2532096. Its totient is φ = 813600.

The previous prime is 1542703. The next prime is 1542727. The reversal of 1542723 is 3272451.

It is not a de Polignac number, because 1542723 - 2⁵ = 1542691 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1542693 and 1542702.

It is not an unprimeable number, because it can be changed into a prime (1542727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2553 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (158256).

2^1542723 is an apocalyptic number.

1542723 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1542723 is a deficient number, since it is larger than the sum of its proper divisors (989373).

1542723 is a wasteful number, since it uses less digits than its factorization.

1542723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674.

The product of its digits is 1680, while the sum is 24.

The square root of 1542723 is about 1242.0640080125. The cubic root of 1542723 is about 115.5480581852.

Adding to 1542723 its product of digits (1680), we get a triangular number (1544403 = T₁₇₅₇).

The spelling of 1542723 in words is "one million, five hundred forty-two thousand, seven hundred twenty-three".