146531147540 has 96 divisors (see below), whose sum is σ = 326883271680. Its totient is φ = 55019602944.

The previous prime is 146531147513. The next prime is 146531147591. The reversal of 146531147540 is 45741135641.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31598102 + ... + 31602738.

It is an arithmetic number, because the mean of its divisors is an integer number (3405034080).

Almost surely, 2^146531147540 is an apocalyptic number.

146531147540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 146531147540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163441635840).

146531147540 is an abundant number, since it is smaller than the sum of its proper divisors (180352124140).

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

146531147540 is a wasteful number, since it uses less digits than its factorization.

146531147540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5409 (or 5407 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 146531147540 in words is "one hundred forty-six billion, five hundred thirty-one million, one hundred forty-seven thousand, five hundred forty".