1542229 has 4 divisors (see below), whose sum is σ = 1660876. Its totient is φ = 1423584.

The previous prime is 1542221. The next prime is 1542239. The reversal of 1542229 is 9222451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9222451 = 7 ⋅1317493.

It can be written as a sum of positive squares in 2 ways, for example, as 677329 + 864900 = 823^2 + 930^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542229 - 2³ = 1542221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59304 + ... + 59329.

It is an arithmetic number, because the mean of its divisors is an integer number (415219).

2^1542229 is an apocalyptic number.

It is an amenable number.

1542229 is a deficient number, since it is larger than the sum of its proper divisors (118647).

1542229 is a wasteful number, since it uses less digits than its factorization.

1542229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118646.

The product of its digits is 1440, while the sum is 25.

The square root of 1542229 is about 1241.8651295531. The cubic root of 1542229 is about 115.5357235374.

It can be divided in two parts, 15422 and 29, that added together give a palindrome (15451).

The spelling of 1542229 in words is "one million, five hundred forty-two thousand, two hundred twenty-nine".