149505598097 has 4 divisors (see below), whose sum is σ = 149593081140. Its totient is φ = 149418115056.

The previous prime is 149505598087. The next prime is 149505598103. The reversal of 149505598097 is 790895505941.

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 62758266256 + 86747331841 = 250516^2 + 294529^2 .

It is a cyclic number.

It is not a de Polignac number, because 149505598097 - 2³⁰ = 148431856273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149505598007) 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, 43738958 + ... + 43742375.

It is an arithmetic number, because the mean of its divisors is an integer number (37398270285).

Almost surely, 2^149505598097 is an apocalyptic number.

It is an amenable number.

149505598097 is a deficient number, since it is larger than the sum of its proper divisors (87483043).

149505598097 is an equidigital number, since it uses as much as digits as its factorization.

149505598097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87483042.

The product of its (nonzero) digits is 20412000, while the sum is 62.

The spelling of 149505598097 in words is "one hundred forty-nine billion, five hundred five million, five hundred ninety-eight thousand, ninety-seven".