149439970177 has 8 divisors (see below), whose sum is σ = 158281344000. Its totient is φ = 140604239424.

The previous prime is 149439970159. The next prime is 149439970237. The reversal of 149439970177 is 771079934941.

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 149439970177 - 2³¹ = 147292486529 is a prime.

It is a super-2 number, since 2×149439970177² (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 (149439970157) 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, 1356177 + ... + 1462222.

It is an arithmetic number, because the mean of its divisors is an integer number (19785168000).

Almost surely, 2^149439970177 is an apocalyptic number.

149439970177 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

149439970177 is a deficient number, since it is larger than the sum of its proper divisors (8841373823).

149439970177 is a wasteful number, since it uses less digits than its factorization.

149439970177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821535.

The product of its (nonzero) digits is 12002256, while the sum is 61.

The spelling of 149439970177 in words is "one hundred forty-nine billion, four hundred thirty-nine million, nine hundred seventy thousand, one hundred seventy-seven".