1870121132 has 24 divisors (see below), whose sum is σ = 3758139840. Its totient is φ = 805314960.

The previous prime is 1870121111. The next prime is 1870121147. The reversal of 1870121132 is 2311210781.

It is a super-2 number, since 2×1870121132² = 6994706096705922848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1117658 + ... + 1119329.

It is an arithmetic number, because the mean of its divisors is an integer number (156589160).

Almost surely, 2^1870121132 is an apocalyptic number.

It is an amenable number.

1870121132 is an abundant number, since it is smaller than the sum of its proper divisors (1888018708).

1870121132 is a wasteful number, since it uses less digits than its factorization.

1870121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237021 (or 2237019 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 1870121132 is about 43244.8971787424. The cubic root of 1870121132 is about 1232.0355683145.

The spelling of 1870121132 in words is "one billion, eight hundred seventy million, one hundred twenty-one thousand, one hundred thirty-two".