2145502534 has 48 divisors (see below), whose sum is σ = 4076708400. Its totient is φ = 841046976.

The previous prime is 2145502519. The next prime is 2145502543. The reversal of 2145502534 is 4352055412.

It is a super-2 number, since 2×2145502534² = 9206362246800842312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2145502496 and 2145502505.

It is a congruent number.

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, 34132 + ... + 73864.

It is an arithmetic number, because the mean of its divisors is an integer number (84931425).

Almost surely, 2^2145502534 is an apocalyptic number.

2145502534 is a deficient number, since it is larger than the sum of its proper divisors (1931205866).

2145502534 is a wasteful number, since it uses less digits than its factorization.

2145502534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39797 (or 39790 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 2145502534 is about 46319.5696655312. The cubic root of 2145502534 is about 1289.7622970070.

Adding to 2145502534 its reverse (4352055412), we get a palindrome (6497557946).

The spelling of 2145502534 in words is "two billion, one hundred forty-five million, five hundred two thousand, five hundred thirty-four".