1946949253 has 2 divisors, whose sum is σ = 1946949254. Its totient is φ = 1946949252.

The previous prime is 1946949239. The next prime is 1946949271. The reversal of 1946949253 is 3529496491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1941107364 + 5841889 = 44058^2 + 2417^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1946949253 is a prime.

It is a super-2 number, since 2×1946949253² = 7581222787514516018, 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 1946949253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1946949353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973474626 + 973474627.

It is an arithmetic number, because the mean of its divisors is an integer number (973474627).

Almost surely, 2^1946949253 is an apocalyptic number.

It is an amenable number.

1946949253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1946949253 is an equidigital number, since it uses as much as digits as its factorization.

1946949253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 52.

The square root of 1946949253 is about 44124.2479029388. The cubic root of 1946949253 is about 1248.6811162326.

The spelling of 1946949253 in words is "one billion, nine hundred forty-six million, nine hundred forty-nine thousand, two hundred fifty-three".