149128714997 has 8 divisors (see below), whose sum is σ = 149827802520. Its totient is φ = 148431191040.

The previous prime is 149128714937. The next prime is 149128715009. The reversal of 149128714997 is 799417821941.

It can be written as a sum of positive squares in 4 ways, for example, as 1741059076 + 147387655921 = 41726^2 + 383911^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149128714997 - 2¹⁰ = 149128713973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149128714937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199472 + ... + 581417.

It is an arithmetic number, because the mean of its divisors is an integer number (18728475315).

Almost surely, 2^149128714997 is an apocalyptic number.

It is an amenable number.

149128714997 is a deficient number, since it is larger than the sum of its proper divisors (699087523).

149128714997 is an equidigital number, since it uses as much as digits as its factorization.

149128714997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781783.

The product of its digits is 9144576, while the sum is 62.

The spelling of 149128714997 in words is "one hundred forty-nine billion, one hundred twenty-eight million, seven hundred fourteen thousand, nine hundred ninety-seven".