201436515451 has 4 divisors (see below), whose sum is σ = 202459036032. Its totient is φ = 200413994872.

The previous prime is 201436515437. The next prime is 201436515493. The reversal of 201436515451 is 154515634102.

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

It is a cyclic number.

It is not a de Polignac number, because 201436515451 - 2⁵ = 201436515419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201436515451.

It is not an unprimeable number, because it can be changed into a prime (201436516451) 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, 511259995 + ... + 511260388.

It is an arithmetic number, because the mean of its divisors is an integer number (50614759008).

Almost surely, 2^201436515451 is an apocalyptic number.

201436515451 is a deficient number, since it is larger than the sum of its proper divisors (1022520581).

201436515451 is a wasteful number, since it uses less digits than its factorization.

201436515451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022520580.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 201436515451 in words is "two hundred one billion, four hundred thirty-six million, five hundred fifteen thousand, four hundred fifty-one".