1229825955 has 64 divisors (see below), whose sum is σ = 2097156096. Its totient is φ = 614400000.

The previous prime is 1229825953. The next prime is 1229825957. The reversal of 1229825955 is 5595289221.

It is an interprime number because it is at equal distance from previous prime (1229825953) and next prime (1229825957).

It is not a de Polignac number, because 1229825955 - 2¹ = 1229825953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1229825953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4785187 + ... + 4785443.

It is an arithmetic number, because the mean of its divisors is an integer number (32768064).

Almost surely, 2^1229825955 is an apocalyptic number.

1229825955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1229825955 is a deficient number, since it is larger than the sum of its proper divisors (867330141).

1229825955 is a wasteful number, since it uses less digits than its factorization.

1229825955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588.

The product of its digits is 648000, while the sum is 48.

The square root of 1229825955 is about 35068.8744472930. The cubic root of 1229825955 is about 1071.3907309937.

The spelling of 1229825955 in words is "one billion, two hundred twenty-nine million, eight hundred twenty-five thousand, nine hundred fifty-five".