1941248945 has 8 divisors (see below), whose sum is σ = 2329852200. Its totient is φ = 1552763520.

The previous prime is 1941248929. The next prime is 1941248977. The reversal of 1941248945 is 5498421491.

It can be written as a sum of positive squares in 4 ways, for example, as 7360369 + 1933888576 = 2713^2 + 43976^2 .

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

It is not a de Polignac number, because 1941248945 - 2⁴ = 1941248929 is a prime.

It is a super-2 number, since 2×1941248945² = 7536894932927226050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1941248945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12131 + ... + 63479.

It is an arithmetic number, because the mean of its divisors is an integer number (291231525).

Almost surely, 2^1941248945 is an apocalyptic number.

It is an amenable number.

1941248945 is a deficient number, since it is larger than the sum of its proper divisors (388603255).

1941248945 is an equidigital number, since it uses as much as digits as its factorization.

1941248945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58915.

The product of its digits is 414720, while the sum is 47.

The square root of 1941248945 is about 44059.6067277047. The cubic root of 1941248945 is about 1247.4612890479.

The spelling of 1941248945 in words is "one billion, nine hundred forty-one million, two hundred forty-eight thousand, nine hundred forty-five".