745750061 has 6 divisors (see below), whose sum is σ = 867505230. Its totient is φ = 639214296.

The previous prime is 745750039. The next prime is 745750063. The reversal of 745750061 is 160057547.

It can be written as a sum of positive squares in only one way, i.e., 690901225 + 54848836 = 26285^2 + 7406^2 .

It is not a de Polignac number, because 745750061 - 2¹⁸ = 745487917 is a prime.

It is a super-2 number, since 2×745750061² = 1112286306963007442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745750063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7609646 + ... + 7609743.

It is an arithmetic number, because the mean of its divisors is an integer number (144584205).

Almost surely, 2^745750061 is an apocalyptic number.

It is an amenable number.

745750061 is a deficient number, since it is larger than the sum of its proper divisors (121755169).

745750061 is a wasteful number, since it uses less digits than its factorization.

745750061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15219403 (or 15219396 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 745750061 is about 27308.4247257142. The cubic root of 745750061 is about 906.8408997955.

The spelling of 745750061 in words is "seven hundred forty-five million, seven hundred fifty thousand, sixty-one".