1202138955 has 16 divisors (see below), whose sum is σ = 2137136160. Its totient is φ = 641140704.

The previous prime is 1202138941. The next prime is 1202138981. The reversal of 1202138955 is 5598312021.

It is not a de Polignac number, because 1202138955 - 2⁶ = 1202138891 is a prime.

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, 4452232 + ... + 4452501.

It is an arithmetic number, because the mean of its divisors is an integer number (133571010).

Almost surely, 2^1202138955 is an apocalyptic number.

1202138955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1202138955 is a deficient number, since it is larger than the sum of its proper divisors (934997205).

1202138955 is an equidigital number, since it uses as much as digits as its factorization.

1202138955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904747 (or 8904741 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 1202138955 is about 34671.8755621902. The cubic root of 1202138955 is about 1063.2895774314.

The spelling of 1202138955 in words is "one billion, two hundred two million, one hundred thirty-eight thousand, nine hundred fifty-five".