1453523906 has 16 divisors (see below), whose sum is σ = 2270619000. Its totient is φ = 696987648.

The previous prime is 1453523891. The next prime is 1453523963. The reversal of 1453523906 is 6093253541.

It can be written as a sum of positive squares in 4 ways, for example, as 758727025 + 694796881 = 27545^2 + 26359^2 .

It is a super-2 number, since 2×1453523906² = 4225463490626993672, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1453523906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75455 + ... + 92738.

Almost surely, 2^1453523906 is an apocalyptic number.

1453523906 is a deficient number, since it is larger than the sum of its proper divisors (817095094).

1453523906 is a wasteful number, since it uses less digits than its factorization.

1453523906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168373.

The product of its (nonzero) digits is 97200, while the sum is 38.

The square root of 1453523906 is about 38125.1086031240. The cubic root of 1453523906 is about 1132.7673592937.

The spelling of 1453523906 in words is "one billion, four hundred fifty-three million, five hundred twenty-three thousand, nine hundred six".