45837949 has 2 divisors, whose sum is σ = 45837950. Its totient is φ = 45837948.

The previous prime is 45837947. The next prime is 45837971. The reversal of 45837949 is 94973854.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42341049 + 3496900 = 6507^2 + 1870^2 .

It is a cyclic number.

It is not a de Polignac number, because 45837949 - 2¹ = 45837947 is a prime.

It is a super-2 number, since 2×45837949² = 4202235137053202, which contains 22 as substring.

Together with 45837947, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45837943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22918974 + 22918975.

It is an arithmetic number, because the mean of its divisors is an integer number (22918975).

Almost surely, 2^45837949 is an apocalyptic number.

It is an amenable number.

45837949 is a deficient number, since it is larger than the sum of its proper divisors (1).

45837949 is an equidigital number, since it uses as much as digits as its factorization.

45837949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 45837949 is about 6770.3728848565. The cubic root of 45837949 is about 357.8835409716.

The spelling of 45837949 in words is "forty-five million, eight hundred thirty-seven thousand, nine hundred forty-nine".