1450009561 has 32 divisors (see below), whose sum is σ = 1955536128. Its totient is φ = 1038320640.

The previous prime is 1450009553. The next prime is 1450009571. The reversal of 1450009561 is 1659000541.

It is not a de Polignac number, because 1450009561 - 2³ = 1450009553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1450009501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230125 + ... + 236341.

It is an arithmetic number, because the mean of its divisors is an integer number (61110504).

Almost surely, 2^1450009561 is an apocalyptic number.

1450009561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1450009561 is a deficient number, since it is larger than the sum of its proper divisors (505526567).

1450009561 is a wasteful number, since it uses less digits than its factorization.

1450009561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1450009561 is about 38078.9910711930. The cubic root of 1450009561 is about 1131.8536836884.

The spelling of 1450009561 in words is "one billion, four hundred fifty million, nine thousand, five hundred sixty-one".