1452345621 has 8 divisors (see below), whose sum is σ = 1936725504. Its totient is φ = 968098080.

The previous prime is 1452345611. The next prime is 1452345641. The reversal of 1452345621 is 1265432541.

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

It is not a de Polignac number, because 1452345621 - 2⁵ = 1452345589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1452345611) 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, 3765 + ... + 54026.

It is an arithmetic number, because the mean of its divisors is an integer number (242090688).

Almost surely, 2^1452345621 is an apocalyptic number.

It is an amenable number.

1452345621 is a deficient number, since it is larger than the sum of its proper divisors (484379883).

1452345621 is an equidigital number, since it uses as much as digits as its factorization.

1452345621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66171.

The product of its digits is 28800, while the sum is 33.

The square root of 1452345621 is about 38109.6525961599. The cubic root of 1452345621 is about 1132.4611876041.

The spelling of 1452345621 in words is "one billion, four hundred fifty-two million, three hundred forty-five thousand, six hundred twenty-one".