634701145 has 16 divisors (see below), whose sum is σ = 842400720. Its totient is φ = 456033024.

The previous prime is 634701131. The next prime is 634701187. The reversal of 634701145 is 541107436.

634701145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6095961 + 628605184 = 2469^2 + 25072^2 .

It is a cyclic number.

It is not a de Polignac number, because 634701145 - 2⁷ = 634701017 is a prime.

It is a super-2 number, since 2×634701145² = 805691086928622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129550 + ... + 134359.

It is an arithmetic number, because the mean of its divisors is an integer number (52650045).

Almost surely, 2^634701145 is an apocalyptic number.

634701145 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

634701145 is a deficient number, since it is larger than the sum of its proper divisors (207699575).

634701145 is a wasteful number, since it uses less digits than its factorization.

634701145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263964.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 634701145 is about 25193.2757893848. The cubic root of 634701145 is about 859.3889408119.

The spelling of 634701145 in words is "six hundred thirty-four million, seven hundred one thousand, one hundred forty-five".