1131870867 has 8 divisors (see below), whose sum is σ = 1513486800. Its totient is φ = 752417760.

The previous prime is 1131870851. The next prime is 1131870889. The reversal of 1131870867 is 7680781311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131870867 - 2⁴ = 1131870851 is a prime.

It is a super-2 number, since 2×1131870867² = 2562263319126663378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1131870827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539484 + ... + 541577.

It is an arithmetic number, because the mean of its divisors is an integer number (189185850).

Almost surely, 2^1131870867 is an apocalyptic number.

1131870867 is a deficient number, since it is larger than the sum of its proper divisors (381615933).

1131870867 is a wasteful number, since it uses less digits than its factorization.

1131870867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081413.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 1131870867 is about 33643.2885877704. The cubic root of 1131870867 is about 1042.1549458712.

The spelling of 1131870867 in words is "one billion, one hundred thirty-one million, eight hundred seventy thousand, eight hundred sixty-seven".