129474963 has 8 divisors (see below), whose sum is σ = 191814800. Its totient is φ = 86316624.

The previous prime is 129474959. The next prime is 129474967. The reversal of 129474963 is 369474921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (129474959) and next prime (129474967).

It is not a de Polignac number, because 129474963 - 2² = 129474959 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129474967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2397658 + ... + 2397711.

It is an arithmetic number, because the mean of its divisors is an integer number (23976850).

Almost surely, 2^129474963 is an apocalyptic number.

129474963 is a deficient number, since it is larger than the sum of its proper divisors (62339837).

129474963 is an equidigital number, since it uses as much as digits as its factorization.

129474963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795378 (or 4795372 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 129474963 is about 11378.7065609409. The cubic root of 129474963 is about 505.8967994525.

The spelling of 129474963 in words is "one hundred twenty-nine million, four hundred seventy-four thousand, nine hundred sixty-three".