149078142 has 48 divisors (see below), whose sum is σ = 341250000. Its totient is φ = 46904832.

The previous prime is 149078099. The next prime is 149078147. The reversal of 149078142 is 241870941.

It is a junction number, because it is equal to n+sod(n) for n = 149078097 and 149078106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149078147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118734 + ... + 119982.

It is an arithmetic number, because the mean of its divisors is an integer number (7109375).

Almost surely, 2^149078142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149078142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170625000).

149078142 is an abundant number, since it is smaller than the sum of its proper divisors (192171858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149078142 is a wasteful number, since it uses less digits than its factorization.

149078142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625 (or 1622 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 149078142 is about 12209.7560172184. The cubic root of 149078142 is about 530.2385801387.

The spelling of 149078142 in words is "one hundred forty-nine million, seventy-eight thousand, one hundred forty-two".