1021498140906 has 64 divisors (see below), whose sum is σ = 2347639603200. Its totient is φ = 329036233968.

The previous prime is 1021498140899. The next prime is 1021498140907. The reversal of 1021498140906 is 6090418941201.

It is a happy number.

1021498140906 is a `hidden beast` number, since 10 + 2 + 1 + 498 + 140 + 9 + 0 + 6 = 666.

1021498140906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1021498140906³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1021498140907) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2346850 + ... + 2747853.

It is an arithmetic number, because the mean of its divisors is an integer number (36681868800).

Almost surely, 2^{1021498140906} is an apocalyptic number.

1021498140906 is an abundant number, since it is smaller than the sum of its proper divisors (1326141462294).

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

1021498140906 is a wasteful number, since it uses less digits than its factorization.

1021498140906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094840 (or 5094834 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 1021498140906 in words is "one trillion, twenty-one billion, four hundred ninety-eight million, one hundred forty thousand, nine hundred six".