2045516542 has 4 divisors (see below), whose sum is σ = 3068274816. Its totient is φ = 1022758270.

The previous prime is 2045516533. The next prime is 2045516581. The reversal of 2045516542 is 2456155402.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2045516498 and 2045516507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511379134 + ... + 511379137.

It is an arithmetic number, because the mean of its divisors is an integer number (767068704).

Almost surely, 2^2045516542 is an apocalyptic number.

2045516542 is a deficient number, since it is larger than the sum of its proper divisors (1022758274).

2045516542 is a wasteful number, since it uses less digits than its factorization.

2045516542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022758273.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2045516542 is about 45227.3870790697. The cubic root of 2045516542 is about 1269.4073209489.

The spelling of 2045516542 in words is "two billion, forty-five million, five hundred sixteen thousand, five hundred forty-two".