1542061469 has 8 divisors (see below), whose sum is σ = 1705565400. Its totient is φ = 1384969536.

The previous prime is 1542061463. The next prime is 1542061471. The reversal of 1542061469 is 9641602451.

It can be written as a sum of positive squares in 4 ways, for example, as 783720025 + 758341444 = 27995^2 + 27538^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1542061469 - 2¹² = 1542057373 is a prime.

It is a super-2 number, since 2×1542061469² = 4755907148348875922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542061463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1602494 + ... + 1603455.

It is an arithmetic number, because the mean of its divisors is an integer number (213195675).

Almost surely, 2^1542061469 is an apocalyptic number.

It is an amenable number.

1542061469 is a deficient number, since it is larger than the sum of its proper divisors (163503931).

1542061469 is a wasteful number, since it uses less digits than its factorization.

1542061469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205999.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1542061469 is about 39269.0905038556. The cubic root of 1542061469 is about 1155.3153987077.

The spelling of 1542061469 in words is "one billion, five hundred forty-two million, sixty-one thousand, four hundred sixty-nine".