129702010 has 32 divisors (see below), whose sum is σ = 249045840. Its totient is φ = 48463872.

The previous prime is 129701987. The next prime is 129702049. The reversal of 129702010 is 10207921.

It can be written as a sum of positive squares in 8 ways, for example, as 58079641 + 71622369 = 7621^2 + 8463^2 .

It is a super-2 number, since 2×129702010² = 33645222796080200, which contains 22 as substring.

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, 20506 + ... + 26074.

Almost surely, 2^129702010 is an apocalyptic number.

129702010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129702010 is a deficient number, since it is larger than the sum of its proper divisors (119343830).

129702010 is a wasteful number, since it uses less digits than its factorization.

129702010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 129702010 is about 11388.6790278768. The cubic root of 129702010 is about 506.1923399249.

Adding to 129702010 its reverse (10207921), we get a palindrome (139909931).

The spelling of 129702010 in words is "one hundred twenty-nine million, seven hundred two thousand, ten".