67139130 has 32 divisors (see below), whose sum is σ = 162211968. Its totient is φ = 17784000.

The previous prime is 67139129. The next prime is 67139131. The reversal of 67139130 is 3193176.

It is an interprime number because it is at equal distance from previous prime (67139129) and next prime (67139131).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (67139131) 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, 2881 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (5069124).

Almost surely, 2^67139130 is an apocalyptic number.

67139130 is an abundant number, since it is smaller than the sum of its proper divisors (95072838).

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

67139130 is a wasteful number, since it uses less digits than its factorization.

67139130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14982.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 67139130 is about 8193.8470818047. The cubic root of 67139130 is about 406.4357515836.

The spelling of 67139130 in words is "sixty-seven million, one hundred thirty-nine thousand, one hundred thirty".