1157901970 has 16 divisors (see below), whose sum is σ = 2099220480. Its totient is φ = 459828144.

The previous prime is 1157901967. The next prime is 1157901991. The reversal of 1157901970 is 791097511.

It is an unprimeable number.

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, 415122 + ... + 417901.

It is an arithmetic number, because the mean of its divisors is an integer number (131201280).

Almost surely, 2^1157901970 is an apocalyptic number.

1157901970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157901970 is a deficient number, since it is larger than the sum of its proper divisors (941318510).

1157901970 is a wasteful number, since it uses less digits than its factorization.

1157901970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833169.

The product of its (nonzero) digits is 19845, while the sum is 40.

The square root of 1157901970 is about 34027.9586516735. The cubic root of 1157901970 is about 1050.0837333073.

The spelling of 1157901970 in words is "one billion, one hundred fifty-seven million, nine hundred one thousand, nine hundred seventy".