149956542842 has 4 divisors (see below), whose sum is σ = 224934814266. Its totient is φ = 74978271420.

The previous prime is 149956542833. The next prime is 149956542871. The reversal of 149956542842 is 248245659941.

149956542842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83861788921 + 66094753921 = 289589^2 + 257089^2 .

It is a super-2 number, since 2×149956542842² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37489135709 + ... + 37489135712.

Almost surely, 2^149956542842 is an apocalyptic number.

149956542842 is a deficient number, since it is larger than the sum of its proper divisors (74978271424).

149956542842 is an equidigital number, since it uses as much as digits as its factorization.

149956542842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74978271423.

The product of its digits is 24883200, while the sum is 59.

The spelling of 149956542842 in words is "one hundred forty-nine billion, nine hundred fifty-six million, five hundred forty-two thousand, eight hundred forty-two".