1129201952 has 12 divisors (see below), whose sum is σ = 2223116406. Its totient is φ = 564600960.

The previous prime is 1129201949. The next prime is 1129201981. The reversal of 1129201952 is 2591029211.

It can be written as a sum of positive squares in only one way, i.e., 1083989776 + 45212176 = 32924^2 + 6724^2 .

It is a super-2 number, since 2×1129201952² = 2550194096801220608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 35287561 = 1129201952 / (1 + 1 + 2 + 9 + 2 + 0 + 1 + 9 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17643749 + ... + 17643812.

Almost surely, 2^1129201952 is an apocalyptic number.

It is an amenable number.

1129201952 is a deficient number, since it is larger than the sum of its proper divisors (1093914454).

1129201952 is an equidigital number, since it uses as much as digits as its factorization.

1129201952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35287571 (or 35287563 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1129201952 is about 33603.6002833030. The cubic root of 1129201952 is about 1041.3351786211.

The spelling of 1129201952 in words is "one billion, one hundred twenty-nine million, two hundred one thousand, nine hundred fifty-two".