139284995 has 24 divisors (see below), whose sum is σ = 181960128. Its totient is φ = 102272000.

The previous prime is 139284989. The next prime is 139285001. The reversal of 139284995 is 599482931.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (139284989) and next prime (139285001).

It is not a de Polignac number, because 139284995 - 2⁶ = 139284931 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58070 + ... + 60420.

It is an arithmetic number, because the mean of its divisors is an integer number (7581672).

Almost surely, 2^139284995 is an apocalyptic number.

139284995 is a deficient number, since it is larger than the sum of its proper divisors (42675133).

139284995 is a wasteful number, since it uses less digits than its factorization.

139284995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431 (or 2414 counting only the distinct ones).

The product of its digits is 699840, while the sum is 50.

The square root of 139284995 is about 11801.9064137960. The cubic root of 139284995 is about 518.3639345555.

The spelling of 139284995 in words is "one hundred thirty-nine million, two hundred eighty-four thousand, nine hundred ninety-five".