1421155242534 has 16 divisors (see below), whose sum is σ = 2843823179520. Its totient is φ = 473466298440.

The previous prime is 1421155242523. The next prime is 1421155242583. The reversal of 1421155242534 is 4352425511241.

It is a junction number, because it is equal to n+sod(n) for n = 1421155242492 and 1421155242501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63016722 + ... + 63039269.

It is an arithmetic number, because the mean of its divisors is an integer number (177738948720).

Almost surely, 2^{1421155242534} is an apocalyptic number.

1421155242534 is an abundant number, since it is smaller than the sum of its proper divisors (1422667936986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1421155242534 is a wasteful number, since it uses less digits than its factorization.

1421155242534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126057875.

The product of its digits is 192000, while the sum is 39.

The spelling of 1421155242534 in words is "one trillion, four hundred twenty-one billion, one hundred fifty-five million, two hundred forty-two thousand, five hundred thirty-four".