1453143561 has 16 divisors (see below), whose sum is σ = 2052350784. Its totient is φ = 911396864.

The previous prime is 1453143539. The next prime is 1453143563. The reversal of 1453143561 is 1653413541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1453143561 - 2¹⁵ = 1453110793 is a prime.

It is a super-2 number, since 2×1453143561² = 4223252417751521442, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1453143563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166441 + ... + 174953.

It is an arithmetic number, because the mean of its divisors is an integer number (128271924).

Almost surely, 2^1453143561 is an apocalyptic number.

It is an amenable number.

1453143561 is a deficient number, since it is larger than the sum of its proper divisors (599207223).

1453143561 is a wasteful number, since it uses less digits than its factorization.

1453143561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11880.

The product of its digits is 21600, while the sum is 33.

The square root of 1453143561 is about 38120.1201598316. The cubic root of 1453143561 is about 1132.6685465658.

The spelling of 1453143561 in words is "one billion, four hundred fifty-three million, one hundred forty-three thousand, five hundred sixty-one".