154020813730 has 32 divisors (see below), whose sum is σ = 323584160256. Its totient is φ = 51683578944.

The previous prime is 154020813719. The next prime is 154020813731. The reversal of 154020813730 is 37318020451.

It is a super-2 number, since 2×154020813730² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (154020813731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23404129 + ... + 23410708.

It is an arithmetic number, because the mean of its divisors is an integer number (10112005008).

Almost surely, 2^154020813730 is an apocalyptic number.

154020813730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154020813730 is an abundant number, since it is smaller than the sum of its proper divisors (169563346526).

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

154020813730 is a wasteful number, since it uses less digits than its factorization.

154020813730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46814898.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 154020813730 in words is "one hundred fifty-four billion, twenty million, eight hundred thirteen thousand, seven hundred thirty".