1151972229 has 8 divisors (see below), whose sum is σ = 1536578080. Its totient is φ = 767673936.

The previous prime is 1151972219. The next prime is 1151972257. The reversal of 1151972229 is 9222791511.

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

It is not a de Polignac number, because 1151972229 - 2⁵ = 1151972197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151972219) 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, 68002 + ... + 83235.

It is an arithmetic number, because the mean of its divisors is an integer number (192072260).

Almost surely, 2^1151972229 is an apocalyptic number.

It is an amenable number.

1151972229 is a deficient number, since it is larger than the sum of its proper divisors (384605851).

1151972229 is a wasteful number, since it uses less digits than its factorization.

1151972229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153779.

The product of its digits is 22680, while the sum is 39.

The square root of 1151972229 is about 33940.7163890216. The cubic root of 1151972229 is about 1048.2881339342.

The spelling of 1151972229 in words is "one billion, one hundred fifty-one million, nine hundred seventy-two thousand, two hundred twenty-nine".