129145370 has 8 divisors (see below), whose sum is σ = 232461684. Its totient is φ = 51658144.

The previous prime is 129145343. The next prime is 129145397. The reversal of 129145370 is 73541921.

It is an interprime number because it is at equal distance from previous prime (129145343) and next prime (129145397).

It can be written as a sum of positive squares in 2 ways, for example, as 123721129 + 5424241 = 11123^2 + 2329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6457259 + ... + 6457278.

Almost surely, 2^129145370 is an apocalyptic number.

129145370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129145370 is a deficient number, since it is larger than the sum of its proper divisors (103316314).

129145370 is a wasteful number, since it uses less digits than its factorization.

129145370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914544.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 129145370 is about 11364.2144471142. The cubic root of 129145370 is about 505.4671623872.

The spelling of 129145370 in words is "one hundred twenty-nine million, one hundred forty-five thousand, three hundred seventy".