1542268453 has 4 divisors (see below), whose sum is σ = 1682474688. Its totient is φ = 1402062220.

The previous prime is 1542268421. The next prime is 1542268463. The reversal of 1542268453 is 3548622451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1542268453 - 2⁵ = 1542268421 is a prime.

It is a super-2 number, since 2×1542268453² = 4757183962238026418, 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 (1542268463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70103101 + ... + 70103122.

It is an arithmetic number, because the mean of its divisors is an integer number (420618672).

Almost surely, 2^1542268453 is an apocalyptic number.

It is an amenable number.

1542268453 is a deficient number, since it is larger than the sum of its proper divisors (140206235).

1542268453 is a wasteful number, since it uses less digits than its factorization.

1542268453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140206234.

The product of its digits is 230400, while the sum is 40.

The square root of 1542268453 is about 39271.7258724391. The cubic root of 1542268453 is about 1155.3670873312.

The spelling of 1542268453 in words is "one billion, five hundred forty-two million, two hundred sixty-eight thousand, four hundred fifty-three".