1454421561 has 8 divisors (see below), whose sum is σ = 1939918944. Its totient is φ = 969269280.

The previous prime is 1454421547. The next prime is 1454421569. The reversal of 1454421561 is 1651244541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1454421561 - 2⁶ = 1454421497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1454421569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76275 + ... + 93416.

It is an arithmetic number, because the mean of its divisors is an integer number (242489868).

Almost surely, 2^1454421561 is an apocalyptic number.

It is an amenable number.

1454421561 is a deficient number, since it is larger than the sum of its proper divisors (485497383).

1454421561 is a wasteful number, since it uses less digits than its factorization.

1454421561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172551.

The product of its digits is 19200, while the sum is 33.

The square root of 1454421561 is about 38136.8792771511. The cubic root of 1454421561 is about 1133.0004996016. Note that the first 3 decimals are identical.

The spelling of 1454421561 in words is "one billion, four hundred fifty-four million, four hundred twenty-one thousand, five hundred sixty-one".