139202010 has 32 divisors (see below), whose sum is σ = 371206080. Its totient is φ = 37120464.

The previous prime is 139201981. The next prime is 139202017. The reversal of 139202010 is 10202931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (139202017) 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, 257512 + ... + 258051.

It is an arithmetic number, because the mean of its divisors is an integer number (11600190).

Almost surely, 2^139202010 is an apocalyptic number.

139202010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139202010 is an abundant number, since it is smaller than the sum of its proper divisors (232004070).

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

139202010 is a wasteful number, since it uses less digits than its factorization.

139202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515579 (or 515573 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 139202010 is about 11798.3901444222. The cubic root of 139202010 is about 518.2609682671.

Adding to 139202010 its reverse (10202931), we get a palindrome (149404941).

The spelling of 139202010 in words is "one hundred thirty-nine million, two hundred two thousand, ten".