146138970 has 32 divisors (see below), whose sum is σ = 371366208. Its totient is φ = 36677888.

The previous prime is 146138963. The next prime is 146138999. The reversal of 146138970 is 79831641.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142764 + ... + 143783.

It is an arithmetic number, because the mean of its divisors is an integer number (11605194).

Almost surely, 2^146138970 is an apocalyptic number.

146138970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

146138970 is an abundant number, since it is smaller than the sum of its proper divisors (225227238).

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

146138970 is a wasteful number, since it uses less digits than its factorization.

146138970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286574.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 146138970 is about 12088.7952253316. The cubic root of 146138970 is about 526.7307596161.

The spelling of 146138970 in words is "one hundred forty-six million, one hundred thirty-eight thousand, nine hundred seventy".