2142598545 has 24 divisors (see below), whose sum is σ = 3764717736. Its totient is φ = 1127063808.

The previous prime is 2142598501. The next prime is 2142598559. The reversal of 2142598545 is 5458952412.

2142598545 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 598 + 54 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 858021264 + 1284577281 = 29292^2 + 35841^2 .

It is not a de Polignac number, because 2142598545 - 2⁹ = 2142598033 is a prime.

It is a super-2 number, since 2×2142598545² = 9181457050072234050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2142598545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322834 + ... + 329403.

It is an arithmetic number, because the mean of its divisors is an integer number (156863239).

Almost surely, 2^2142598545 is an apocalyptic number.

It is an amenable number.

2142598545 is a deficient number, since it is larger than the sum of its proper divisors (1622119191).

2142598545 is a wasteful number, since it uses less digits than its factorization.

2142598545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652321 (or 652318 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 2142598545 is about 46288.2117282576. The cubic root of 2142598545 is about 1289.1801262272.

The spelling of 2142598545 in words is "two billion, one hundred forty-two million, five hundred ninety-eight thousand, five hundred forty-five".