1535421142 has 8 divisors (see below), whose sum is σ = 2303314776. Its totient is φ = 767649552.

The previous prime is 1535421137. The next prime is 1535421149. The reversal of 1535421142 is 2411245351.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1535421142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1535421149) 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, 13833 + ... + 57115.

It is an arithmetic number, because the mean of its divisors is an integer number (287914347).

Almost surely, 2^1535421142 is an apocalyptic number.

1535421142 is a deficient number, since it is larger than the sum of its proper divisors (767893634).

1535421142 is a wasteful number, since it uses less digits than its factorization.

1535421142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61022.

The product of its digits is 4800, while the sum is 28.

The square root of 1535421142 is about 39184.4502577234. The cubic root of 1535421142 is about 1153.6546974614.

Adding to 1535421142 its reverse (2411245351), we get a palindrome (3946666493).

The spelling of 1535421142 in words is "one billion, five hundred thirty-five million, four hundred twenty-one thousand, one hundred forty-two".