149419583897 has 4 divisors (see below), whose sum is σ = 150014881296. Its totient is φ = 148824286500.

The previous prime is 149419583893. The next prime is 149419583899. The reversal of 149419583897 is 798385914941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 798385914941 = 2617 ⋅305076773.

It is a cyclic number.

It is not a de Polignac number, because 149419583897 - 2² = 149419583893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149419583893) 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, 297648323 + ... + 297648824.

It is an arithmetic number, because the mean of its divisors is an integer number (37503720324).

Almost surely, 2^149419583897 is an apocalyptic number.

It is an amenable number.

149419583897 is a deficient number, since it is larger than the sum of its proper divisors (595297399).

149419583897 is an equidigital number, since it uses as much as digits as its factorization.

149419583897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595297398.

The product of its digits is 78382080, while the sum is 68.

The spelling of 149419583897 in words is "one hundred forty-nine billion, four hundred nineteen million, five hundred eighty-three thousand, eight hundred ninety-seven".