45722129 has 4 divisors (see below), whose sum is σ = 48411684. Its totient is φ = 43032576.

The previous prime is 45722111. The next prime is 45722147. The reversal of 45722129 is 92122754.

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

It is an interprime number because it is at equal distance from previous prime (45722111) and next prime (45722147).

It can be written as a sum of positive squares in 2 ways, for example, as 16810000 + 28912129 = 4100^2 + 5377^2 .

It is not a de Polignac number, because 45722129 - 2¹⁶ = 45656593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45722095 and 45722104.

It is not an unprimeable number, because it can be changed into a prime (45722629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1344752 + ... + 1344785.

It is an arithmetic number, because the mean of its divisors is an integer number (12102921).

Almost surely, 2^45722129 is an apocalyptic number.

It is an amenable number.

45722129 is a deficient number, since it is larger than the sum of its proper divisors (2689555).

45722129 is a wasteful number, since it uses less digits than its factorization.

45722129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689554.

The product of its digits is 10080, while the sum is 32.

The square root of 45722129 is about 6761.8140317521. The cubic root of 45722129 is about 357.5818620300.

The spelling of 45722129 in words is "forty-five million, seven hundred twenty-two thousand, one hundred twenty-nine".