1149431970 has 16 divisors (see below), whose sum is σ = 2758636800. Its totient is φ = 306515184.

The previous prime is 1149431963. The next prime is 1149431971. The reversal of 1149431970 is 791349411.

It is not an unprimeable number, because it can be changed into a prime (1149431971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19157170 + ... + 19157229.

It is an arithmetic number, because the mean of its divisors is an integer number (172414800).

Almost surely, 2^1149431970 is an apocalyptic number.

1149431970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1149431970 is an abundant number, since it is smaller than the sum of its proper divisors (1609204830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149431970 is a wasteful number, since it uses less digits than its factorization.

1149431970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38314409.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 1149431970 is about 33903.2737357324. The cubic root of 1149431970 is about 1047.5170264737.

The spelling of 1149431970 in words is "one billion, one hundred forty-nine million, four hundred thirty-one thousand, nine hundred seventy".