151540802449 has 4 divisors (see below), whose sum is σ = 151820915380. Its totient is φ = 151260689520.

The previous prime is 151540802447. The next prime is 151540802459. The reversal of 151540802449 is 944208045151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52477646400 + 99063156049 = 229080^2 + 314743^2 .

It is a cyclic number.

It is not a de Polignac number, because 151540802449 - 2¹ = 151540802447 is a prime.

It is a super-2 number, since 2×151540802449² (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 (151540802447) 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, 140055654 + ... + 140056735.

It is an arithmetic number, because the mean of its divisors is an integer number (37955228845).

Almost surely, 2^151540802449 is an apocalyptic number.

It is an amenable number.

151540802449 is a deficient number, since it is larger than the sum of its proper divisors (280112931).

151540802449 is an equidigital number, since it uses as much as digits as its factorization.

151540802449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280112930.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 151540802449 in words is "one hundred fifty-one billion, five hundred forty million, eight hundred two thousand, four hundred forty-nine".