2145351540154 has 8 divisors (see below), whose sum is σ = 3218676513588. Its totient is φ = 1072459368960.

The previous prime is 2145351540097. The next prime is 2145351540181. The reversal of 2145351540154 is 4510451535412.

It can be written as a sum of positive squares in 2 ways, for example, as 2008107223929 + 137244316225 = 1417077^2 + 370465^2 .

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

It is a super-2 number, since 2×2145351540154² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108188167 + ... + 108207994.

Almost surely, 2^{2145351540154} is an apocalyptic number.

2145351540154 is a deficient number, since it is larger than the sum of its proper divisors (1073324973434).

2145351540154 is a wasteful number, since it uses less digits than its factorization.

2145351540154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216401120.

The product of its (nonzero) digits is 240000, while the sum is 40.

The spelling of 2145351540154 in words is "two trillion, one hundred forty-five billion, three hundred fifty-one million, five hundred forty thousand, one hundred fifty-four".