1453351642 has 4 divisors (see below), whose sum is σ = 2180027466. Its totient is φ = 726675820.

The previous prime is 1453351619. The next prime is 1453351649. The reversal of 1453351642 is 2461533541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2461533541 = 223 ⋅11038267.

It can be written as a sum of positive squares in only one way, i.e., 759608721 + 693742921 = 27561^2 + 26339^2 .

It is a super-2 number, since 2×1453351642² = 4224461990608192328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1453351598 and 1453351607.

It is not an unprimeable number, because it can be changed into a prime (1453351649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363337909 + ... + 363337912.

Almost surely, 2^1453351642 is an apocalyptic number.

1453351642 is a deficient number, since it is larger than the sum of its proper divisors (726675824).

1453351642 is an equidigital number, since it uses as much as digits as its factorization.

1453351642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726675823.

The product of its digits is 43200, while the sum is 34.

The square root of 1453351642 is about 38122.8493426187. The cubic root of 1453351642 is about 1132.7226076514.

The spelling of 1453351642 in words is "one billion, four hundred fifty-three million, three hundred fifty-one thousand, six hundred forty-two".