1453142121 has 8 divisors (see below), whose sum is σ = 2004334080. Its totient is φ = 935355792.

The previous prime is 1453142077. The next prime is 1453142137. The reversal of 1453142121 is 1212413541.

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

It is not a de Polignac number, because 1453142121 - 2⁶ = 1453142057 is a prime.

It is a super-2 number, since 2×1453142121² = 4223244047648757282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1453142091 and 1453142100.

It is not an unprimeable number, because it can be changed into a prime (1453142191) 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, 8351305 + ... + 8351478.

It is an arithmetic number, because the mean of its divisors is an integer number (250541760).

Almost surely, 2^1453142121 is an apocalyptic number.

It is an amenable number.

1453142121 is a deficient number, since it is larger than the sum of its proper divisors (551191959).

1453142121 is a wasteful number, since it uses less digits than its factorization.

1453142121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16702815.

The product of its digits is 960, while the sum is 24.

The square root of 1453142121 is about 38120.1012721635. The cubic root of 1453142121 is about 1132.6681724245.

Adding to 1453142121 its reverse (1212413541), we get a palindrome (2665555662).

The spelling of 1453142121 in words is "one billion, four hundred fifty-three million, one hundred forty-two thousand, one hundred twenty-one".