147870138 has 32 divisors (see below), whose sum is σ = 322987392. Its totient is φ = 44856000.

The previous prime is 147870137. The next prime is 147870143. The reversal of 147870138 is 831078741.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 147870096 and 147870105.

It is not an unprimeable number, because it can be changed into a prime (147870137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7813 + ... + 18888.

It is an arithmetic number, because the mean of its divisors is an integer number (10093356).

Almost surely, 2^147870138 is an apocalyptic number.

147870138 is an abundant number, since it is smaller than the sum of its proper divisors (175117254).

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

147870138 is a wasteful number, since it uses less digits than its factorization.

147870138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26790.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 147870138 is about 12160.1865939631. The cubic root of 147870138 is about 528.8024915333.

The spelling of 147870138 in words is "one hundred forty-seven million, eight hundred seventy thousand, one hundred thirty-eight".