129014004 has 48 divisors (see below), whose sum is σ = 344913408. Its totient is φ = 36767328.

The previous prime is 129013991. The next prime is 129014027. The reversal of 129014004 is 400410921.

It is a super-2 number, since 2×129014004² = 33289226456224032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 35479 + ... + 38945.

It is an arithmetic number, because the mean of its divisors is an integer number (7185696).

Almost surely, 2^129014004 is an apocalyptic number.

129014004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

129014004 is an abundant number, since it is smaller than the sum of its proper divisors (215899404).

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

129014004 is a wasteful number, since it uses less digits than its factorization.

129014004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924 (or 3922 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 129014004 is about 11358.4331665948. The cubic root of 129014004 is about 505.2957180520.

Adding to 129014004 its reverse (400410921), we get a palindrome (529424925).

The spelling of 129014004 in words is "one hundred twenty-nine million, fourteen thousand, four".