149742136297 has 8 divisors (see below), whose sum is σ = 161275022216. Its totient is φ = 138211287552.

The previous prime is 149742136279. The next prime is 149742136361. The reversal of 149742136297 is 792631247941.

It can be written as a sum of positive squares in 4 ways, for example, as 6143581161 + 143598555136 = 78381^2 + 378944^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-149742136297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149742136207) 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, 354888 + ... + 652249.

It is an arithmetic number, because the mean of its divisors is an integer number (20159377777).

Almost surely, 2^149742136297 is an apocalyptic number.

It is an amenable number.

149742136297 is a deficient number, since it is larger than the sum of its proper divisors (11532885919).

149742136297 is a wasteful number, since it uses less digits than its factorization.

149742136297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018587.

The product of its digits is 4572288, while the sum is 55.

The spelling of 149742136297 in words is "one hundred forty-nine billion, seven hundred forty-two million, one hundred thirty-six thousand, two hundred ninety-seven".