201453532451 has 4 divisors (see below), whose sum is σ = 210212381712. Its totient is φ = 192694683192.

The previous prime is 201453532429. The next prime is 201453532499. The reversal of 201453532451 is 154235354102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201453532451 - 2¹⁴ = 201453516067 is a prime.

It is a super-2 number, since 2×201453532451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201453532151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4379424596 + ... + 4379424641.

It is an arithmetic number, because the mean of its divisors is an integer number (52553095428).

Almost surely, 2^201453532451 is an apocalyptic number.

201453532451 is a deficient number, since it is larger than the sum of its proper divisors (8758849261).

201453532451 is an equidigital number, since it uses as much as digits as its factorization.

201453532451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8758849260.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 201453532451 its reverse (154235354102), we get a palindrome (355688886553).

The spelling of 201453532451 in words is "two hundred one billion, four hundred fifty-three million, five hundred thirty-two thousand, four hundred fifty-one".