1648245542 has 4 divisors (see below), whose sum is σ = 2472368316. Its totient is φ = 824122770.

The previous prime is 1648245539. The next prime is 1648245581. The reversal of 1648245542 is 2455428461.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1648245542.

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, 412061384 + ... + 412061387.

It is an arithmetic number, because the mean of its divisors is an integer number (618092079).

Almost surely, 2^1648245542 is an apocalyptic number.

1648245542 is a deficient number, since it is larger than the sum of its proper divisors (824122774).

1648245542 is an equidigital number, since it uses as much as digits as its factorization.

1648245542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824122773.

The product of its digits is 307200, while the sum is 41.

The square root of 1648245542 is about 40598.5903942489. The cubic root of 1648245542 is about 1181.2467770990.

The spelling of 1648245542 in words is "one billion, six hundred forty-eight million, two hundred forty-five thousand, five hundred forty-two".